681326520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:406

約数の個数: 256

約数和(自身を含む): 2434682880

約数和(自身を除く): 1753356360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 41, 42, 56, 60, 70, 73, 82, 84, 105, 120, 123, 140, 146, 164, 168, 205, 210, 219, 246, 271, 280, 287, 292, 328, 365, 410, 420, 438, 492, 511, 542, 574, 584, 615, 730, 813, 820, 840, 861, 876, 984, 1022, 1084, 1095, 1148, 1230, 1355, 1435, 1460, 1533, 1626, 1640, 1722, 1752, 1897, 2044, 2168, 2190, 2296, 2460, 2555, 2710, 2870, 2920, 2993, 3066, 3252, 3444, 3794, 4065, 4088, 4305, 4380, 4920, 5110, 5420, 5691, 5740, 5986, 6132, 6504, 6888, 7588, 7665, 8130, 8610, 8760, 8979, 9485, 10220, 10840, 11111, 11382, 11480, 11972, 12264, 14965, 15176, 15330, 16260, 17220, 17958, 18970, 19783, 20440, 20951, 22222, 22764, 23944, 28455, 29930, 30660, 32520, 33333, 34440, 35916, 37940, 39566, 41902, 44444, 44895, 45528, 55555, 56910, 59349, 59860, 61320, 62853, 66666, 71832, 75880, 77777, 79132, 83804, 88888, 89790, 98915, 104755, 111110, 113820, 118698, 119720, 125706, 133332, 138481, 155554, 158264, 166665, 167608, 179580, 197830, 209510, 222220, 227640, 233331, 237396, 251412, 266664, 276962, 296745, 311108, 314265, 333330, 359160, 388885, 395660, 415443, 419020, 444440, 466662, 474792, 502824, 553924, 593490, 622216, 628530, 666660, 692405, 777770, 791320, 811103, 830886, 838040, 933324, 1107848, 1166655, 1186980, 1257060, 1333320, 1384810, 1555540, 1622206, 1661772, 1866648, 2077215, 2333310, 2373960, 2433309, 2514120, 2769620, 3111080, 3244412, 3323544, 4055515, 4154430, 4666620, 4866618, 5539240, 5677721, 6488824, 8111030, 8308860, 9333240, 9733236, 11355442, 12166545, 16222060, 16617720, 17033163, 19466472, 22710884, 24333090, 28388605, 32444120, 34066326, 45421768, 48666180, 56777210, 68132652, 85165815, 97332360, 113554420, 136265304, 170331630, 227108840, 340663260, 681326520]

約数ペア:

[(1, 681326520), (2, 340663260), (3, 227108840), (4, 170331630), (5, 136265304), (6, 113554420), (7, 97332360), (8, 85165815), (10, 68132652), (12, 56777210), (14, 48666180), (15, 45421768), (20, 34066326), (21, 32444120), (24, 28388605), (28, 24333090), (30, 22710884), (35, 19466472), (40, 17033163), (41, 16617720), (42, 16222060), (56, 12166545), (60, 11355442), (70, 9733236), (73, 9333240), (82, 8308860), (84, 8111030), (105, 6488824), (120, 5677721), (123, 5539240), (140, 4866618), (146, 4666620), (164, 4154430), (168, 4055515), (205, 3323544), (210, 3244412), (219, 3111080), (246, 2769620), (271, 2514120), (280, 2433309), (287, 2373960), (292, 2333310), (328, 2077215), (365, 1866648), (410, 1661772), (420, 1622206), (438, 1555540), (492, 1384810), (511, 1333320), (542, 1257060), (574, 1186980), (584, 1166655), (615, 1107848), (730, 933324), (813, 838040), (820, 830886), (840, 811103), (861, 791320), (876, 777770), (984, 692405), (1022, 666660), (1084, 628530), (1095, 622216), (1148, 593490), (1230, 553924), (1355, 502824), (1435, 474792), (1460, 466662), (1533, 444440), (1626, 419020), (1640, 415443), (1722, 395660), (1752, 388885), (1897, 359160), (2044, 333330), (2168, 314265), (2190, 311108), (2296, 296745), (2460, 276962), (2555, 266664), (2710, 251412), (2870, 237396), (2920, 233331), (2993, 227640), (3066, 222220), (3252, 209510), (3444, 197830), (3794, 179580), (4065, 167608), (4088, 166665), (4305, 158264), (4380, 155554), (4920, 138481), (5110, 133332), (5420, 125706), (5691, 119720), (5740, 118698), (5986, 113820), (6132, 111110), (6504, 104755), (6888, 98915), (7588, 89790), (7665, 88888), (8130, 83804), (8610, 79132), (8760, 77777), (8979, 75880), (9485, 71832), (10220, 66666), (10840, 62853), (11111, 61320), (11382, 59860), (11480, 59349), (11972, 56910), (12264, 55555), (14965, 45528), (15176, 44895), (15330, 44444), (16260, 41902), (17220, 39566), (17958, 37940), (18970, 35916), (19783, 34440), (20440, 33333), (20951, 32520), (22222, 30660), (22764, 29930), (23944, 28455)]