80570620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2843}}^1$

素因数の和:2974

約数の個数: 48

約数和(自身を含む): 183949920

約数和(自身を除く): 103379300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 2843, 5668, 5686, 7085, 11372, 14170, 14215, 28340, 28430, 36959, 56860, 73918, 147836, 184795, 309887, 369590, 619774, 739180, 1239548, 1549435, 3098870, 4028531, 6197740, 8057062, 16114124, 20142655, 40285310, 80570620]

約数ペア:

[(1, 80570620), (2, 40285310), (4, 20142655), (5, 16114124), (10, 8057062), (13, 6197740), (20, 4028531), (26, 3098870), (52, 1549435), (65, 1239548), (109, 739180), (130, 619774), (218, 369590), (260, 309887), (436, 184795), (545, 147836), (1090, 73918), (1417, 56860), (2180, 36959), (2834, 28430), (2843, 28340), (5668, 14215), (5686, 14170), (7085, 11372)]