51718760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4003}}^1$

素因数の和:4050

約数の個数: 64

約数和(自身を含む): 129729600

約数和(自身を除く): 78010840

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 4003, 6460, 8006, 12920, 16012, 20015, 32024, 40030, 68051, 76057, 80060, 136102, 152114, 160120, 272204, 304228, 340255, 380285, 544408, 608456, 680510, 760570, 1292969, 1361020, 1521140, 2585938, 2722040, 3042280, 5171876, 6464845, 10343752, 12929690, 25859380, 51718760]

約数ペア:

[(1, 51718760), (2, 25859380), (4, 12929690), (5, 10343752), (8, 6464845), (10, 5171876), (17, 3042280), (19, 2722040), (20, 2585938), (34, 1521140), (38, 1361020), (40, 1292969), (68, 760570), (76, 680510), (85, 608456), (95, 544408), (136, 380285), (152, 340255), (170, 304228), (190, 272204), (323, 160120), (340, 152114), (380, 136102), (646, 80060), (680, 76057), (760, 68051), (1292, 40030), (1615, 32024), (2584, 20015), (3230, 16012), (4003, 12920), (6460, 8006)]