155210320

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 376650000

約数和(自身を除く): 221439680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 149, 232, 290, 298, 449, 464, 580, 596, 745, 898, 1160, 1192, 1490, 1796, 2245, 2320, 2384, 2980, 3592, 4321, 4490, 5960, 7184, 8642, 8980, 11920, 13021, 17284, 17960, 21605, 26042, 34568, 35920, 43210, 52084, 65105, 66901, 69136, 86420, 104168, 130210, 133802, 172840, 208336, 260420, 267604, 334505, 345680, 520840, 535208, 669010, 1041680, 1070416, 1338020, 1940129, 2676040, 3880258, 5352080, 7760516, 9700645, 15521032, 19401290, 31042064, 38802580, 77605160, 155210320]

約数ペア:

[(1, 155210320), (2, 77605160), (4, 38802580), (5, 31042064), (8, 19401290), (10, 15521032), (16, 9700645), (20, 7760516), (29, 5352080), (40, 3880258), (58, 2676040), (80, 1940129), (116, 1338020), (145, 1070416), (149, 1041680), (232, 669010), (290, 535208), (298, 520840), (449, 345680), (464, 334505), (580, 267604), (596, 260420), (745, 208336), (898, 172840), (1160, 133802), (1192, 130210), (1490, 104168), (1796, 86420), (2245, 69136), (2320, 66901), (2384, 65105), (2980, 52084), (3592, 43210), (4321, 35920), (4490, 34568), (5960, 26042), (7184, 21605), (8642, 17960), (8980, 17284), (11920, 13021)]