721354920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:496

約数の個数: 256

約数和(自身を含む): 2570158080

約数和(自身を除く): 1848803160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 127, 130, 132, 143, 156, 165, 195, 220, 254, 260, 264, 286, 312, 330, 331, 381, 390, 429, 440, 508, 520, 572, 635, 660, 662, 715, 762, 780, 858, 993, 1016, 1144, 1270, 1320, 1324, 1397, 1430, 1524, 1560, 1651, 1655, 1716, 1905, 1986, 2145, 2540, 2648, 2794, 2860, 3048, 3302, 3310, 3432, 3641, 3810, 3972, 4191, 4290, 4303, 4953, 4965, 5080, 5588, 5720, 6604, 6620, 6985, 7282, 7620, 7944, 8255, 8382, 8580, 8606, 9906, 9930, 10923, 11176, 12909, 13208, 13240, 13970, 14564, 15240, 16510, 16764, 17160, 17212, 18161, 18205, 19812, 19860, 20955, 21515, 21846, 24765, 25818, 27940, 29128, 33020, 33528, 34424, 36322, 36410, 39624, 39720, 41910, 42037, 43030, 43692, 47333, 49530, 51636, 54483, 54615, 55880, 64545, 66040, 72644, 72820, 83820, 84074, 86060, 87384, 90805, 94666, 99060, 103272, 108966, 109230, 126111, 129090, 141999, 145288, 145640, 167640, 168148, 172120, 181610, 189332, 198120, 210185, 217932, 218460, 236665, 252222, 258180, 272415, 283998, 336296, 363220, 378664, 420370, 435864, 436920, 462407, 473330, 504444, 516360, 544830, 546481, 567996, 630555, 709995, 726440, 840740, 924814, 946660, 1008888, 1089660, 1092962, 1135992, 1261110, 1387221, 1419990, 1639443, 1681480, 1849628, 1893320, 2179320, 2185924, 2312035, 2522220, 2732405, 2774442, 2839980, 3278886, 3699256, 4371848, 4624070, 5044440, 5464810, 5548884, 5679960, 6011291, 6557772, 6936105, 8197215, 9248140, 10929620, 11097768, 12022582, 13115544, 13872210, 16394430, 18033873, 18496280, 21859240, 24045164, 27744420, 30056455, 32788860, 36067746, 48090328, 55488840, 60112910, 65577720, 72135492, 90169365, 120225820, 144270984, 180338730, 240451640, 360677460, 721354920]

約数ペア:

[(1, 721354920), (2, 360677460), (3, 240451640), (4, 180338730), (5, 144270984), (6, 120225820), (8, 90169365), (10, 72135492), (11, 65577720), (12, 60112910), (13, 55488840), (15, 48090328), (20, 36067746), (22, 32788860), (24, 30056455), (26, 27744420), (30, 24045164), (33, 21859240), (39, 18496280), (40, 18033873), (44, 16394430), (52, 13872210), (55, 13115544), (60, 12022582), (65, 11097768), (66, 10929620), (78, 9248140), (88, 8197215), (104, 6936105), (110, 6557772), (120, 6011291), (127, 5679960), (130, 5548884), (132, 5464810), (143, 5044440), (156, 4624070), (165, 4371848), (195, 3699256), (220, 3278886), (254, 2839980), (260, 2774442), (264, 2732405), (286, 2522220), (312, 2312035), (330, 2185924), (331, 2179320), (381, 1893320), (390, 1849628), (429, 1681480), (440, 1639443), (508, 1419990), (520, 1387221), (572, 1261110), (635, 1135992), (660, 1092962), (662, 1089660), (715, 1008888), (762, 946660), (780, 924814), (858, 840740), (993, 726440), (1016, 709995), (1144, 630555), (1270, 567996), (1320, 546481), (1324, 544830), (1397, 516360), (1430, 504444), (1524, 473330), (1560, 462407), (1651, 436920), (1655, 435864), (1716, 420370), (1905, 378664), (1986, 363220), (2145, 336296), (2540, 283998), (2648, 272415), (2794, 258180), (2860, 252222), (3048, 236665), (3302, 218460), (3310, 217932), (3432, 210185), (3641, 198120), (3810, 189332), (3972, 181610), (4191, 172120), (4290, 168148), (4303, 167640), (4953, 145640), (4965, 145288), (5080, 141999), (5588, 129090), (5720, 126111), (6604, 109230), (6620, 108966), (6985, 103272), (7282, 99060), (7620, 94666), (7944, 90805), (8255, 87384), (8382, 86060), (8580, 84074), (8606, 83820), (9906, 72820), (9930, 72644), (10923, 66040), (11176, 64545), (12909, 55880), (13208, 54615), (13240, 54483), (13970, 51636), (14564, 49530), (15240, 47333), (16510, 43692), (16764, 43030), (17160, 42037), (17212, 41910), (18161, 39720), (18205, 39624), (19812, 36410), (19860, 36322), (20955, 34424), (21515, 33528), (21846, 33020), (24765, 29128), (25818, 27940)]