12938120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 31752000

約数和(自身を除く): 18813880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 179, 260, 278, 358, 520, 556, 695, 716, 895, 1112, 1390, 1432, 1790, 1807, 2327, 2780, 3580, 3614, 4654, 5560, 7160, 7228, 9035, 9308, 11635, 14456, 18070, 18616, 23270, 24881, 36140, 46540, 49762, 72280, 93080, 99524, 124405, 199048, 248810, 323453, 497620, 646906, 995240, 1293812, 1617265, 2587624, 3234530, 6469060, 12938120]

約数ペア:

[(1, 12938120), (2, 6469060), (4, 3234530), (5, 2587624), (8, 1617265), (10, 1293812), (13, 995240), (20, 646906), (26, 497620), (40, 323453), (52, 248810), (65, 199048), (104, 124405), (130, 99524), (139, 93080), (179, 72280), (260, 49762), (278, 46540), (358, 36140), (520, 24881), (556, 23270), (695, 18616), (716, 18070), (895, 14456), (1112, 11635), (1390, 9308), (1432, 9035), (1790, 7228), (1807, 7160), (2327, 5560), (2780, 4654), (3580, 3614)]