20735624

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{313}}^1$

素因数の和:359

約数の個数: 72

約数和(自身を含む): 49130010

約数和(自身を除く): 28394386

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 313, 338, 364, 392, 626, 637, 676, 728, 1183, 1252, 1274, 1352, 2191, 2366, 2504, 2548, 4069, 4382, 4732, 5096, 8138, 8281, 8764, 9464, 15337, 16276, 16562, 17528, 28483, 30674, 32552, 33124, 52897, 56966, 61348, 66248, 105794, 113932, 122696, 199381, 211588, 227864, 370279, 398762, 423176, 740558, 797524, 1481116, 1595048, 2591953, 2962232, 5183906, 10367812, 20735624]

約数ペア:

[(1, 20735624), (2, 10367812), (4, 5183906), (7, 2962232), (8, 2591953), (13, 1595048), (14, 1481116), (26, 797524), (28, 740558), (49, 423176), (52, 398762), (56, 370279), (91, 227864), (98, 211588), (104, 199381), (169, 122696), (182, 113932), (196, 105794), (313, 66248), (338, 61348), (364, 56966), (392, 52897), (626, 33124), (637, 32552), (676, 30674), (728, 28483), (1183, 17528), (1252, 16562), (1274, 16276), (1352, 15337), (2191, 9464), (2366, 8764), (2504, 8281), (2548, 8138), (4069, 5096), (4382, 4732)]