85123700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 193347000

約数和(自身を除く): 108223300

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 149, 197, 290, 298, 394, 580, 596, 725, 745, 788, 985, 1450, 1490, 1970, 2900, 2980, 3725, 3940, 4321, 4925, 5713, 7450, 8642, 9850, 11426, 14900, 17284, 19700, 21605, 22852, 28565, 29353, 43210, 57130, 58706, 86420, 108025, 114260, 117412, 142825, 146765, 216050, 285650, 293530, 432100, 571300, 587060, 733825, 851237, 1467650, 1702474, 2935300, 3404948, 4256185, 8512370, 17024740, 21280925, 42561850, 85123700]

約数ペア:

[(1, 85123700), (2, 42561850), (4, 21280925), (5, 17024740), (10, 8512370), (20, 4256185), (25, 3404948), (29, 2935300), (50, 1702474), (58, 1467650), (100, 851237), (116, 733825), (145, 587060), (149, 571300), (197, 432100), (290, 293530), (298, 285650), (394, 216050), (580, 146765), (596, 142825), (725, 117412), (745, 114260), (788, 108025), (985, 86420), (1450, 58706), (1490, 57130), (1970, 43210), (2900, 29353), (2980, 28565), (3725, 22852), (3940, 21605), (4321, 19700), (4925, 17284), (5713, 14900), (7450, 11426), (8642, 9850)]