20309216

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 42094080

約数和(自身を除く): 21784864

約数列:

[1, 2, 4, 8, 16, 31, 32, 59, 62, 118, 124, 236, 248, 347, 472, 496, 694, 944, 992, 1388, 1829, 1888, 2776, 3658, 5552, 7316, 10757, 11104, 14632, 20473, 21514, 29264, 40946, 43028, 58528, 81892, 86056, 163784, 172112, 327568, 344224, 634663, 655136, 1269326, 2538652, 5077304, 10154608, 20309216]

約数ペア:

[(1, 20309216), (2, 10154608), (4, 5077304), (8, 2538652), (16, 1269326), (31, 655136), (32, 634663), (59, 344224), (62, 327568), (118, 172112), (124, 163784), (236, 86056), (248, 81892), (347, 58528), (472, 43028), (496, 40946), (694, 29264), (944, 21514), (992, 20473), (1388, 14632), (1829, 11104), (1888, 10757), (2776, 7316), (3658, 5552)]