20556744

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1607}}^1$

素因数の和:1670

約数の個数: 64

約数和(自身を含む): 56730240

約数和(自身を除く): 36173496

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 41, 52, 78, 82, 104, 123, 156, 164, 246, 312, 328, 492, 533, 984, 1066, 1599, 1607, 2132, 3198, 3214, 4264, 4821, 6396, 6428, 9642, 12792, 12856, 19284, 20891, 38568, 41782, 62673, 65887, 83564, 125346, 131774, 167128, 197661, 250692, 263548, 395322, 501384, 527096, 790644, 856531, 1581288, 1713062, 2569593, 3426124, 5139186, 6852248, 10278372, 20556744]

約数ペア:

[(1, 20556744), (2, 10278372), (3, 6852248), (4, 5139186), (6, 3426124), (8, 2569593), (12, 1713062), (13, 1581288), (24, 856531), (26, 790644), (39, 527096), (41, 501384), (52, 395322), (78, 263548), (82, 250692), (104, 197661), (123, 167128), (156, 131774), (164, 125346), (246, 83564), (312, 65887), (328, 62673), (492, 41782), (533, 38568), (984, 20891), (1066, 19284), (1599, 12856), (1607, 12792), (2132, 9642), (3198, 6428), (3214, 6396), (4264, 4821)]