7691380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 17010000

約数和(自身を除く): 9318620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 116, 145, 149, 178, 290, 298, 356, 445, 580, 596, 745, 890, 1490, 1780, 2581, 2980, 4321, 5162, 8642, 10324, 12905, 13261, 17284, 21605, 25810, 26522, 43210, 51620, 53044, 66305, 86420, 132610, 265220, 384569, 769138, 1538276, 1922845, 3845690, 7691380]

約数ペア:

[(1, 7691380), (2, 3845690), (4, 1922845), (5, 1538276), (10, 769138), (20, 384569), (29, 265220), (58, 132610), (89, 86420), (116, 66305), (145, 53044), (149, 51620), (178, 43210), (290, 26522), (298, 25810), (356, 21605), (445, 17284), (580, 13261), (596, 12905), (745, 10324), (890, 8642), (1490, 5162), (1780, 4321), (2581, 2980)]