78303940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 206458560

約数和(自身を除く): 128154620

約数列:

[1, 2, 4, 5, 10, 11, 13, 19, 20, 22, 26, 38, 44, 52, 55, 65, 76, 95, 110, 121, 130, 131, 143, 190, 209, 220, 242, 247, 260, 262, 286, 380, 418, 484, 494, 524, 572, 605, 655, 715, 836, 988, 1045, 1210, 1235, 1310, 1430, 1441, 1573, 1703, 2090, 2299, 2420, 2470, 2489, 2620, 2717, 2860, 2882, 3146, 3406, 4180, 4598, 4940, 4978, 5434, 5764, 6292, 6812, 7205, 7865, 8515, 9196, 9956, 10868, 11495, 12445, 13585, 14410, 15730, 15851, 17030, 18733, 22990, 24890, 27170, 27379, 28820, 29887, 31460, 31702, 32357, 34060, 37466, 45980, 49780, 54340, 54758, 59774, 63404, 64714, 74932, 79255, 93665, 109516, 119548, 129428, 136895, 149435, 158510, 161785, 187330, 206063, 273790, 298870, 301169, 317020, 323570, 355927, 374660, 412126, 547580, 597740, 602338, 647140, 711854, 824252, 1030315, 1204676, 1423708, 1505845, 1779635, 2060630, 3011690, 3559270, 3915197, 4121260, 6023380, 7118540, 7830394, 15660788, 19575985, 39151970, 78303940]

約数ペア:

[(1, 78303940), (2, 39151970), (4, 19575985), (5, 15660788), (10, 7830394), (11, 7118540), (13, 6023380), (19, 4121260), (20, 3915197), (22, 3559270), (26, 3011690), (38, 2060630), (44, 1779635), (52, 1505845), (55, 1423708), (65, 1204676), (76, 1030315), (95, 824252), (110, 711854), (121, 647140), (130, 602338), (131, 597740), (143, 547580), (190, 412126), (209, 374660), (220, 355927), (242, 323570), (247, 317020), (260, 301169), (262, 298870), (286, 273790), (380, 206063), (418, 187330), (484, 161785), (494, 158510), (524, 149435), (572, 136895), (605, 129428), (655, 119548), (715, 109516), (836, 93665), (988, 79255), (1045, 74932), (1210, 64714), (1235, 63404), (1310, 59774), (1430, 54758), (1441, 54340), (1573, 49780), (1703, 45980), (2090, 37466), (2299, 34060), (2420, 32357), (2470, 31702), (2489, 31460), (2620, 29887), (2717, 28820), (2860, 27379), (2882, 27170), (3146, 24890), (3406, 22990), (4180, 18733), (4598, 17030), (4940, 15851), (4978, 15730), (5434, 14410), (5764, 13585), (6292, 12445), (6812, 11495), (7205, 10868), (7865, 9956), (8515, 9196)]