61560660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{20939}}^1$

素因数の和:20965

約数の個数: 72

約数和(自身を含む): 200521440

約数和(自身を除く): 138960780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 20939, 41878, 62817, 83756, 104695, 125634, 146573, 209390, 251268, 293146, 314085, 418780, 439719, 586292, 628170, 732865, 879438, 1026011, 1256340, 1465730, 1758876, 2052022, 2198595, 2931460, 3078033, 4104044, 4397190, 5130055, 6156066, 8794380, 10260110, 12312132, 15390165, 20520220, 30780330, 61560660]

約数ペア:

[(1, 61560660), (2, 30780330), (3, 20520220), (4, 15390165), (5, 12312132), (6, 10260110), (7, 8794380), (10, 6156066), (12, 5130055), (14, 4397190), (15, 4104044), (20, 3078033), (21, 2931460), (28, 2198595), (30, 2052022), (35, 1758876), (42, 1465730), (49, 1256340), (60, 1026011), (70, 879438), (84, 732865), (98, 628170), (105, 586292), (140, 439719), (147, 418780), (196, 314085), (210, 293146), (245, 251268), (294, 209390), (420, 146573), (490, 125634), (588, 104695), (735, 83756), (980, 62817), (1470, 41878), (2940, 20939)]