20178800380

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2039}}^1\times {\mathrm{2963}}^1$

素因数の和:5178

約数の個数: 48

約数和(自身を含む): 42664527360

約数和(自身を除く): 22485726980

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 2039, 2963, 3340, 4078, 5926, 8156, 10195, 11852, 14815, 20390, 29630, 40780, 59260, 340513, 494821, 681026, 989642, 1362052, 1702565, 1979284, 2474105, 3405130, 4948210, 6041557, 6810260, 9896420, 12083114, 24166228, 30207785, 60415570, 120831140, 1008940019, 2017880038, 4035760076, 5044700095, 10089400190, 20178800380]

約数ペア:

[(1, 20178800380), (2, 10089400190), (4, 5044700095), (5, 4035760076), (10, 2017880038), (20, 1008940019), (167, 120831140), (334, 60415570), (668, 30207785), (835, 24166228), (1670, 12083114), (2039, 9896420), (2963, 6810260), (3340, 6041557), (4078, 4948210), (5926, 3405130), (8156, 2474105), (10195, 1979284), (11852, 1702565), (14815, 1362052), (20390, 989642), (29630, 681026), (40780, 494821), (59260, 340513)]