31928780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3319}}^1$

素因数の和:3378

約数の個数: 48

約数和(自身を含む): 74182080

約数和(自身を除く): 42253300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 3319, 4810, 6638, 9620, 13276, 16595, 33190, 43147, 66380, 86294, 122803, 172588, 215735, 245606, 431470, 491212, 614015, 862940, 1228030, 1596439, 2456060, 3192878, 6385756, 7982195, 15964390, 31928780]

約数ペア:

[(1, 31928780), (2, 15964390), (4, 7982195), (5, 6385756), (10, 3192878), (13, 2456060), (20, 1596439), (26, 1228030), (37, 862940), (52, 614015), (65, 491212), (74, 431470), (130, 245606), (148, 215735), (185, 172588), (260, 122803), (370, 86294), (481, 66380), (740, 43147), (962, 33190), (1924, 16595), (2405, 13276), (3319, 9620), (4810, 6638)]