15765980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 34836480

約数和(自身を除く): 19070500

約数列:

[1, 2, 4, 5, 10, 20, 31, 59, 62, 118, 124, 155, 236, 295, 310, 431, 590, 620, 862, 1180, 1724, 1829, 2155, 3658, 4310, 7316, 8620, 9145, 13361, 18290, 25429, 26722, 36580, 50858, 53444, 66805, 101716, 127145, 133610, 254290, 267220, 508580, 788299, 1576598, 3153196, 3941495, 7882990, 15765980]

約数ペア:

[(1, 15765980), (2, 7882990), (4, 3941495), (5, 3153196), (10, 1576598), (20, 788299), (31, 508580), (59, 267220), (62, 254290), (118, 133610), (124, 127145), (155, 101716), (236, 66805), (295, 53444), (310, 50858), (431, 36580), (590, 26722), (620, 25429), (862, 18290), (1180, 13361), (1724, 9145), (1829, 8620), (2155, 7316), (3658, 4310)]