128523940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 294749280

約数和(自身を除く): 166225340

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 53, 58, 74, 106, 113, 116, 145, 148, 185, 212, 226, 265, 290, 370, 452, 530, 565, 580, 740, 1060, 1073, 1130, 1537, 1961, 2146, 2260, 3074, 3277, 3922, 4181, 4292, 5365, 5989, 6148, 6554, 7685, 7844, 8362, 9805, 10730, 11978, 13108, 15370, 16385, 16724, 19610, 20905, 21460, 23956, 29945, 30740, 32770, 39220, 41810, 56869, 59890, 65540, 83620, 113738, 119780, 121249, 173681, 221593, 227476, 242498, 284345, 347362, 443186, 484996, 568690, 606245, 694724, 868405, 886372, 1107965, 1137380, 1212490, 1736810, 2215930, 2424980, 3473620, 4431860, 6426197, 12852394, 25704788, 32130985, 64261970, 128523940]

約数ペア:

[(1, 128523940), (2, 64261970), (4, 32130985), (5, 25704788), (10, 12852394), (20, 6426197), (29, 4431860), (37, 3473620), (53, 2424980), (58, 2215930), (74, 1736810), (106, 1212490), (113, 1137380), (116, 1107965), (145, 886372), (148, 868405), (185, 694724), (212, 606245), (226, 568690), (265, 484996), (290, 443186), (370, 347362), (452, 284345), (530, 242498), (565, 227476), (580, 221593), (740, 173681), (1060, 121249), (1073, 119780), (1130, 113738), (1537, 83620), (1961, 65540), (2146, 59890), (2260, 56869), (3074, 41810), (3277, 39220), (3922, 32770), (4181, 30740), (4292, 29945), (5365, 23956), (5989, 21460), (6148, 20905), (6554, 19610), (7685, 16724), (7844, 16385), (8362, 15370), (9805, 13108), (10730, 11978)]