9921520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{2531}}^1$

素因数の和:2558

約数の個数: 60

約数和(自身を含む): 26844264

約数和(自身を除く): 16922744

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, 2531, 3920, 5062, 10124, 12655, 17717, 20248, 25310, 35434, 40496, 50620, 70868, 88585, 101240, 124019, 141736, 177170, 202480, 248038, 283472, 354340, 496076, 620095, 708680, 992152, 1240190, 1417360, 1984304, 2480380, 4960760, 9921520]

約数ペア:

[(1, 9921520), (2, 4960760), (4, 2480380), (5, 1984304), (7, 1417360), (8, 1240190), (10, 992152), (14, 708680), (16, 620095), (20, 496076), (28, 354340), (35, 283472), (40, 248038), (49, 202480), (56, 177170), (70, 141736), (80, 124019), (98, 101240), (112, 88585), (140, 70868), (196, 50620), (245, 40496), (280, 35434), (392, 25310), (490, 20248), (560, 17717), (784, 12655), (980, 10124), (1960, 5062), (2531, 3920)]