221007780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{175403}}^1$

素因数の和:175425

約数の個数: 72

約数和(自身を含む): 766164672

約数和(自身を除く): 545156892

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, 175403, 350806, 526209, 701612, 877015, 1052418, 1227821, 1578627, 1754030, 2104836, 2455642, 2631045, 3157254, 3508060, 3683463, 4911284, 5262090, 6139105, 6314508, 7366926, 7893135, 10524180, 11050389, 12278210, 14733852, 15786270, 18417315, 22100778, 24556420, 31572540, 36834630, 44201556, 55251945, 73669260, 110503890, 221007780]

約数ペア:

[(1, 221007780), (2, 110503890), (3, 73669260), (4, 55251945), (5, 44201556), (6, 36834630), (7, 31572540), (9, 24556420), (10, 22100778), (12, 18417315), (14, 15786270), (15, 14733852), (18, 12278210), (20, 11050389), (21, 10524180), (28, 7893135), (30, 7366926), (35, 6314508), (36, 6139105), (42, 5262090), (45, 4911284), (60, 3683463), (63, 3508060), (70, 3157254), (84, 2631045), (90, 2455642), (105, 2104836), (126, 1754030), (140, 1578627), (180, 1227821), (210, 1052418), (252, 877015), (315, 701612), (420, 526209), (630, 350806), (1260, 175403)]