77658320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2689}}^1$

素因数の和:2740

約数の個数: 60

約数和(自身を含む): 190629540

約数和(自身を除く): 112971220

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2689, 2888, 3610, 5378, 5776, 7220, 10756, 13445, 14440, 21512, 26890, 28880, 43024, 51091, 53780, 102182, 107560, 204364, 215120, 255455, 408728, 510910, 817456, 970729, 1021820, 1941458, 2043640, 3882916, 4087280, 4853645, 7765832, 9707290, 15531664, 19414580, 38829160, 77658320]

約数ペア:

[(1, 77658320), (2, 38829160), (4, 19414580), (5, 15531664), (8, 9707290), (10, 7765832), (16, 4853645), (19, 4087280), (20, 3882916), (38, 2043640), (40, 1941458), (76, 1021820), (80, 970729), (95, 817456), (152, 510910), (190, 408728), (304, 255455), (361, 215120), (380, 204364), (722, 107560), (760, 102182), (1444, 53780), (1520, 51091), (1805, 43024), (2689, 28880), (2888, 26890), (3610, 21512), (5378, 14440), (5776, 13445), (7220, 10756)]