20781617700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{5897}}^1$

素因数の和:6622

約数の個数: 144

約数和(自身を含む): 63768043584

約数和(自身を除く): 42986425884

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 150, 170, 204, 255, 300, 340, 425, 510, 691, 850, 1020, 1275, 1382, 1700, 2073, 2550, 2764, 3455, 4146, 5100, 5897, 6910, 8292, 10365, 11747, 11794, 13820, 17275, 17691, 20730, 23494, 23588, 29485, 34550, 35241, 35382, 41460, 46988, 51825, 58735, 58970, 69100, 70482, 70764, 88455, 100249, 103650, 117470, 117940, 140964, 147425, 176205, 176910, 200498, 207300, 234940, 293675, 294850, 300747, 352410, 353820, 400996, 442275, 501245, 587350, 589700, 601494, 704820, 881025, 884550, 1002490, 1174700, 1202988, 1503735, 1762050, 1769100, 2004980, 2506225, 3007470, 3524100, 4074827, 5012450, 6014940, 7518675, 8149654, 10024900, 12224481, 15037350, 16299308, 20374135, 24448962, 30074700, 40748270, 48897924, 61122405, 69272059, 81496540, 101870675, 122244810, 138544118, 203741350, 207816177, 244489620, 277088236, 305612025, 346360295, 407482700, 415632354, 611224050, 692720590, 831264708, 1039080885, 1222448100, 1385441180, 1731801475, 2078161770, 3463602950, 4156323540, 5195404425, 6927205900, 10390808850, 20781617700]

約数ペア:

[(1, 20781617700), (2, 10390808850), (3, 6927205900), (4, 5195404425), (5, 4156323540), (6, 3463602950), (10, 2078161770), (12, 1731801475), (15, 1385441180), (17, 1222448100), (20, 1039080885), (25, 831264708), (30, 692720590), (34, 611224050), (50, 415632354), (51, 407482700), (60, 346360295), (68, 305612025), (75, 277088236), (85, 244489620), (100, 207816177), (102, 203741350), (150, 138544118), (170, 122244810), (204, 101870675), (255, 81496540), (300, 69272059), (340, 61122405), (425, 48897924), (510, 40748270), (691, 30074700), (850, 24448962), (1020, 20374135), (1275, 16299308), (1382, 15037350), (1700, 12224481), (2073, 10024900), (2550, 8149654), (2764, 7518675), (3455, 6014940), (4146, 5012450), (5100, 4074827), (5897, 3524100), (6910, 3007470), (8292, 2506225), (10365, 2004980), (11747, 1769100), (11794, 1762050), (13820, 1503735), (17275, 1202988), (17691, 1174700), (20730, 1002490), (23494, 884550), (23588, 881025), (29485, 704820), (34550, 601494), (35241, 589700), (35382, 587350), (41460, 501245), (46988, 442275), (51825, 400996), (58735, 353820), (58970, 352410), (69100, 300747), (70482, 294850), (70764, 293675), (88455, 234940), (100249, 207300), (103650, 200498), (117470, 176910), (117940, 176205), (140964, 147425)]