221367720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{263533}}^1$

素因数の和:263554

約数の個数: 64

約数和(自身を含む): 758977920

約数和(自身を除く): 537610200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 263533, 527066, 790599, 1054132, 1317665, 1581198, 1844731, 2108264, 2635330, 3162396, 3689462, 3952995, 5270660, 5534193, 6324792, 7378924, 7905990, 9223655, 10541320, 11068386, 14757848, 15811980, 18447310, 22136772, 27670965, 31623960, 36894620, 44273544, 55341930, 73789240, 110683860, 221367720]

約数ペア:

[(1, 221367720), (2, 110683860), (3, 73789240), (4, 55341930), (5, 44273544), (6, 36894620), (7, 31623960), (8, 27670965), (10, 22136772), (12, 18447310), (14, 15811980), (15, 14757848), (20, 11068386), (21, 10541320), (24, 9223655), (28, 7905990), (30, 7378924), (35, 6324792), (40, 5534193), (42, 5270660), (56, 3952995), (60, 3689462), (70, 3162396), (84, 2635330), (105, 2108264), (120, 1844731), (140, 1581198), (168, 1317665), (210, 1054132), (280, 790599), (420, 527066), (840, 263533)]