221601520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{56531}}^1$

素因数の和:56558

約数の個数: 60

約数和(自身を含む): 599352264

約数和(自身を除く): 377750744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 56531, 113062, 226124, 282655, 395717, 452248, 565310, 791434, 904496, 1130620, 1582868, 1978585, 2261240, 2770019, 3165736, 3957170, 4522480, 5540038, 6331472, 7914340, 11080076, 13850095, 15828680, 22160152, 27700190, 31657360, 44320304, 55400380, 110800760, 221601520]

約数ペア:

[(1, 221601520), (2, 110800760), (4, 55400380), (5, 44320304), (7, 31657360), (8, 27700190), (10, 22160152), (14, 15828680), (16, 13850095), (20, 11080076), (28, 7914340), (35, 6331472), (40, 5540038), (49, 4522480), (56, 3957170), (70, 3165736), (80, 2770019), (98, 2261240), (112, 1978585), (140, 1582868), (196, 1130620), (245, 904496), (280, 791434), (392, 565310), (490, 452248), (560, 395717), (784, 282655), (980, 226124), (1960, 113062), (3920, 56531)]