321044080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{81899}}^1$

素因数の和:81926

約数の個数: 60

約数和(自身を含む): 868303800

約数和(自身を除く): 547259720

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, 81899, 163798, 327596, 409495, 573293, 655192, 818990, 1146586, 1310384, 1637980, 2293172, 2866465, 3275960, 4013051, 4586344, 5732930, 6551920, 8026102, 9172688, 11465860, 16052204, 20065255, 22931720, 32104408, 40130510, 45863440, 64208816, 80261020, 160522040, 321044080]

約数ペア:

[(1, 321044080), (2, 160522040), (4, 80261020), (5, 64208816), (7, 45863440), (8, 40130510), (10, 32104408), (14, 22931720), (16, 20065255), (20, 16052204), (28, 11465860), (35, 9172688), (40, 8026102), (49, 6551920), (56, 5732930), (70, 4586344), (80, 4013051), (98, 3275960), (112, 2866465), (140, 2293172), (196, 1637980), (245, 1310384), (280, 1146586), (392, 818990), (490, 655192), (560, 573293), (784, 409495), (980, 327596), (1960, 163798), (3920, 81899)]