68647640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 174182400

約数和(自身を除く): 105534760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 31, 40, 46, 58, 62, 83, 92, 115, 116, 124, 145, 155, 166, 184, 230, 232, 248, 290, 310, 332, 415, 460, 580, 620, 664, 667, 713, 830, 899, 920, 1160, 1240, 1334, 1426, 1660, 1798, 1909, 2407, 2573, 2668, 2852, 3320, 3335, 3565, 3596, 3818, 4495, 4814, 5146, 5336, 5704, 6670, 7130, 7192, 7636, 8990, 9545, 9628, 10292, 12035, 12865, 13340, 14260, 15272, 17980, 19090, 19256, 20584, 20677, 24070, 25730, 26680, 28520, 35960, 38180, 41354, 48140, 51460, 55361, 59179, 74617, 76360, 82708, 96280, 102920, 103385, 110722, 118358, 149234, 165416, 206770, 221444, 236716, 276805, 295895, 298468, 373085, 413540, 442888, 473432, 553610, 591790, 596936, 746170, 827080, 1107220, 1183580, 1492340, 1716191, 2214440, 2367160, 2984680, 3432382, 6864764, 8580955, 13729528, 17161910, 34323820, 68647640]

約数ペア:

[(1, 68647640), (2, 34323820), (4, 17161910), (5, 13729528), (8, 8580955), (10, 6864764), (20, 3432382), (23, 2984680), (29, 2367160), (31, 2214440), (40, 1716191), (46, 1492340), (58, 1183580), (62, 1107220), (83, 827080), (92, 746170), (115, 596936), (116, 591790), (124, 553610), (145, 473432), (155, 442888), (166, 413540), (184, 373085), (230, 298468), (232, 295895), (248, 276805), (290, 236716), (310, 221444), (332, 206770), (415, 165416), (460, 149234), (580, 118358), (620, 110722), (664, 103385), (667, 102920), (713, 96280), (830, 82708), (899, 76360), (920, 74617), (1160, 59179), (1240, 55361), (1334, 51460), (1426, 48140), (1660, 41354), (1798, 38180), (1909, 35960), (2407, 28520), (2573, 26680), (2668, 25730), (2852, 24070), (3320, 20677), (3335, 20584), (3565, 19256), (3596, 19090), (3818, 17980), (4495, 15272), (4814, 14260), (5146, 13340), (5336, 12865), (5704, 12035), (6670, 10292), (7130, 9628), (7192, 9545), (7636, 8990)]