68205280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 191443392

約数和(自身を除く): 123238112

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 121, 130, 143, 160, 176, 208, 220, 242, 260, 271, 286, 352, 416, 440, 484, 520, 542, 572, 605, 715, 880, 968, 1040, 1084, 1144, 1210, 1355, 1430, 1573, 1760, 1936, 2080, 2168, 2288, 2420, 2710, 2860, 2981, 3146, 3523, 3872, 4336, 4576, 4840, 5420, 5720, 5962, 6292, 7046, 7865, 8672, 9680, 10840, 11440, 11924, 12584, 14092, 14905, 15730, 17615, 19360, 21680, 22880, 23848, 25168, 28184, 29810, 31460, 32791, 35230, 38753, 43360, 47696, 50336, 56368, 59620, 62920, 65582, 70460, 77506, 95392, 112736, 119240, 125840, 131164, 140920, 155012, 163955, 193765, 238480, 251680, 262328, 281840, 310024, 327910, 387530, 426283, 476960, 524656, 563680, 620048, 655820, 775060, 852566, 1049312, 1240096, 1311640, 1550120, 1705132, 2131415, 2623280, 3100240, 3410264, 4262830, 5246560, 6200480, 6820528, 8525660, 13641056, 17051320, 34102640, 68205280]

約数ペア:

[(1, 68205280), (2, 34102640), (4, 17051320), (5, 13641056), (8, 8525660), (10, 6820528), (11, 6200480), (13, 5246560), (16, 4262830), (20, 3410264), (22, 3100240), (26, 2623280), (32, 2131415), (40, 1705132), (44, 1550120), (52, 1311640), (55, 1240096), (65, 1049312), (80, 852566), (88, 775060), (104, 655820), (110, 620048), (121, 563680), (130, 524656), (143, 476960), (160, 426283), (176, 387530), (208, 327910), (220, 310024), (242, 281840), (260, 262328), (271, 251680), (286, 238480), (352, 193765), (416, 163955), (440, 155012), (484, 140920), (520, 131164), (542, 125840), (572, 119240), (605, 112736), (715, 95392), (880, 77506), (968, 70460), (1040, 65582), (1084, 62920), (1144, 59620), (1210, 56368), (1355, 50336), (1430, 47696), (1573, 43360), (1760, 38753), (1936, 35230), (2080, 32791), (2168, 31460), (2288, 29810), (2420, 28184), (2710, 25168), (2860, 23848), (2981, 22880), (3146, 21680), (3523, 19360), (3872, 17615), (4336, 15730), (4576, 14905), (4840, 14092), (5420, 12584), (5720, 11924), (5962, 11440), (6292, 10840), (7046, 9680), (7865, 8672)]