19581660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15541}}^1$

素因数の和:15563

約数の個数: 72

約数和(自身を含む): 67887456

約数和(自身を除く): 48305796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15541, 31082, 46623, 62164, 77705, 93246, 108787, 139869, 155410, 186492, 217574, 233115, 279738, 310820, 326361, 435148, 466230, 543935, 559476, 652722, 699345, 932460, 979083, 1087870, 1305444, 1398690, 1631805, 1958166, 2175740, 2797380, 3263610, 3916332, 4895415, 6527220, 9790830, 19581660]

約数ペア:

[(1, 19581660), (2, 9790830), (3, 6527220), (4, 4895415), (5, 3916332), (6, 3263610), (7, 2797380), (9, 2175740), (10, 1958166), (12, 1631805), (14, 1398690), (15, 1305444), (18, 1087870), (20, 979083), (21, 932460), (28, 699345), (30, 652722), (35, 559476), (36, 543935), (42, 466230), (45, 435148), (60, 326361), (63, 310820), (70, 279738), (84, 233115), (90, 217574), (105, 186492), (126, 155410), (140, 139869), (180, 108787), (210, 93246), (252, 77705), (315, 62164), (420, 46623), (630, 31082), (1260, 15541)]