20009680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14713}}^1$

素因数の和:14743

約数の個数: 40

約数和(自身を含む): 49262472

約数和(自身を除く): 29252792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14713, 29426, 58852, 73565, 117704, 147130, 235408, 250121, 294260, 500242, 588520, 1000484, 1177040, 1250605, 2000968, 2501210, 4001936, 5002420, 10004840, 20009680]

約数ペア:

[(1, 20009680), (2, 10004840), (4, 5002420), (5, 4001936), (8, 2501210), (10, 2000968), (16, 1250605), (17, 1177040), (20, 1000484), (34, 588520), (40, 500242), (68, 294260), (80, 250121), (85, 235408), (136, 147130), (170, 117704), (272, 73565), (340, 58852), (680, 29426), (1360, 14713)]