51116840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 122428800

約数和(自身を除く): 71311960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 653, 760, 824, 1030, 1306, 1957, 2060, 2612, 3265, 3914, 4120, 5224, 6530, 7828, 9785, 12407, 13060, 15656, 19570, 24814, 26120, 39140, 49628, 62035, 67259, 78280, 99256, 124070, 134518, 248140, 269036, 336295, 496280, 538072, 672590, 1277921, 1345180, 2555842, 2690360, 5111684, 6389605, 10223368, 12779210, 25558420, 51116840]

約数ペア:

[(1, 51116840), (2, 25558420), (4, 12779210), (5, 10223368), (8, 6389605), (10, 5111684), (19, 2690360), (20, 2555842), (38, 1345180), (40, 1277921), (76, 672590), (95, 538072), (103, 496280), (152, 336295), (190, 269036), (206, 248140), (380, 134518), (412, 124070), (515, 99256), (653, 78280), (760, 67259), (824, 62035), (1030, 49628), (1306, 39140), (1957, 26120), (2060, 24814), (2612, 19570), (3265, 15656), (3914, 13060), (4120, 12407), (5224, 9785), (6530, 7828)]