12509980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4703}}^1$

素因数の和:4738

約数の個数: 48

約数和(自身を含む): 31610880

約数和(自身を除く): 19100900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 4703, 9406, 18812, 23515, 32921, 47030, 65842, 89357, 94060, 131684, 164605, 178714, 329210, 357428, 446785, 625499, 658420, 893570, 1250998, 1787140, 2501996, 3127495, 6254990, 12509980]

約数ペア:

[(1, 12509980), (2, 6254990), (4, 3127495), (5, 2501996), (7, 1787140), (10, 1250998), (14, 893570), (19, 658420), (20, 625499), (28, 446785), (35, 357428), (38, 329210), (70, 178714), (76, 164605), (95, 131684), (133, 94060), (140, 89357), (190, 65842), (266, 47030), (380, 32921), (532, 23515), (665, 18812), (1330, 9406), (2660, 4703)]