221753480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1699}}^1$

素因数の和:1974

約数の個数: 64

約数和(自身を含む): 539784000

約数和(自身を除く): 318030520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 251, 260, 502, 520, 1004, 1255, 1699, 2008, 2510, 3263, 3398, 5020, 6526, 6796, 8495, 10040, 13052, 13592, 16315, 16990, 22087, 26104, 32630, 33980, 44174, 65260, 67960, 88348, 110435, 130520, 176696, 220870, 426449, 441740, 852898, 883480, 1705796, 2132245, 3411592, 4264490, 5543837, 8528980, 11087674, 17057960, 22175348, 27719185, 44350696, 55438370, 110876740, 221753480]

約数ペア:

[(1, 221753480), (2, 110876740), (4, 55438370), (5, 44350696), (8, 27719185), (10, 22175348), (13, 17057960), (20, 11087674), (26, 8528980), (40, 5543837), (52, 4264490), (65, 3411592), (104, 2132245), (130, 1705796), (251, 883480), (260, 852898), (502, 441740), (520, 426449), (1004, 220870), (1255, 176696), (1699, 130520), (2008, 110435), (2510, 88348), (3263, 67960), (3398, 65260), (5020, 44174), (6526, 33980), (6796, 32630), (8495, 26104), (10040, 22087), (13052, 16990), (13592, 16315)]