20624968

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 48827520

約数和(自身を除く): 28202552

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 41, 52, 56, 82, 91, 104, 164, 182, 287, 328, 364, 533, 574, 691, 728, 1066, 1148, 1382, 2132, 2296, 2764, 3731, 4264, 4837, 5528, 7462, 8983, 9674, 14924, 17966, 19348, 28331, 29848, 35932, 38696, 56662, 62881, 71864, 113324, 125762, 198317, 226648, 251524, 368303, 396634, 503048, 736606, 793268, 1473212, 1586536, 2578121, 2946424, 5156242, 10312484, 20624968]

約数ペア:

[(1, 20624968), (2, 10312484), (4, 5156242), (7, 2946424), (8, 2578121), (13, 1586536), (14, 1473212), (26, 793268), (28, 736606), (41, 503048), (52, 396634), (56, 368303), (82, 251524), (91, 226648), (104, 198317), (164, 125762), (182, 113324), (287, 71864), (328, 62881), (364, 56662), (533, 38696), (574, 35932), (691, 29848), (728, 28331), (1066, 19348), (1148, 17966), (1382, 14924), (2132, 9674), (2296, 8983), (2764, 7462), (3731, 5528), (4264, 4837)]