31286960

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 76173696

約数和(自身を除く): 44886736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 53, 80, 94, 106, 157, 188, 212, 235, 265, 314, 376, 424, 470, 530, 628, 752, 785, 848, 940, 1060, 1256, 1570, 1880, 2120, 2491, 2512, 3140, 3760, 4240, 4982, 6280, 7379, 8321, 9964, 12455, 12560, 14758, 16642, 19928, 24910, 29516, 33284, 36895, 39856, 41605, 49820, 59032, 66568, 73790, 83210, 99640, 118064, 133136, 147580, 166420, 199280, 295160, 332840, 391087, 590320, 665680, 782174, 1564348, 1955435, 3128696, 3910870, 6257392, 7821740, 15643480, 31286960]

約数ペア:

[(1, 31286960), (2, 15643480), (4, 7821740), (5, 6257392), (8, 3910870), (10, 3128696), (16, 1955435), (20, 1564348), (40, 782174), (47, 665680), (53, 590320), (80, 391087), (94, 332840), (106, 295160), (157, 199280), (188, 166420), (212, 147580), (235, 133136), (265, 118064), (314, 99640), (376, 83210), (424, 73790), (470, 66568), (530, 59032), (628, 49820), (752, 41605), (785, 39856), (848, 36895), (940, 33284), (1060, 29516), (1256, 24910), (1570, 19928), (1880, 16642), (2120, 14758), (2491, 12560), (2512, 12455), (3140, 9964), (3760, 8321), (4240, 7379), (4982, 6280)]