21207804980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1\times {\mathrm{2797}}^1$

素因数の和:3621

約数の個数: 96

約数和(自身を含む): 48863152800

約数和(自身を除く): 27655347820

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 769, 986, 1538, 1972, 2465, 2797, 3076, 3845, 4930, 5594, 7690, 9860, 11188, 13073, 13985, 15380, 22301, 26146, 27970, 44602, 47549, 52292, 55940, 65365, 81113, 89204, 95098, 111505, 130730, 162226, 190196, 223010, 237745, 261460, 324452, 379117, 405565, 446020, 475490, 758234, 811130, 950980, 1378921, 1516468, 1622260, 1895585, 2150893, 2757842, 3791170, 4301786, 5515684, 6894605, 7582340, 8603572, 10754465, 13789210, 21508930, 27578420, 36565181, 43017860, 62375897, 73130362, 124751794, 146260724, 182825905, 249503588, 311879485, 365651810, 623758970, 731303620, 1060390249, 1247517940, 2120780498, 4241560996, 5301951245, 10603902490, 21207804980]

約数ペア:

[(1, 21207804980), (2, 10603902490), (4, 5301951245), (5, 4241560996), (10, 2120780498), (17, 1247517940), (20, 1060390249), (29, 731303620), (34, 623758970), (58, 365651810), (68, 311879485), (85, 249503588), (116, 182825905), (145, 146260724), (170, 124751794), (290, 73130362), (340, 62375897), (493, 43017860), (580, 36565181), (769, 27578420), (986, 21508930), (1538, 13789210), (1972, 10754465), (2465, 8603572), (2797, 7582340), (3076, 6894605), (3845, 5515684), (4930, 4301786), (5594, 3791170), (7690, 2757842), (9860, 2150893), (11188, 1895585), (13073, 1622260), (13985, 1516468), (15380, 1378921), (22301, 950980), (26146, 811130), (27970, 758234), (44602, 475490), (47549, 446020), (52292, 405565), (55940, 379117), (65365, 324452), (81113, 261460), (89204, 237745), (95098, 223010), (111505, 190196), (130730, 162226)]