20705048

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 31005352

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 49, 52, 56, 68, 91, 98, 104, 119, 136, 182, 196, 221, 238, 239, 364, 392, 442, 476, 478, 637, 728, 833, 884, 952, 956, 1274, 1547, 1666, 1673, 1768, 1912, 2548, 3094, 3107, 3332, 3346, 4063, 5096, 6188, 6214, 6664, 6692, 8126, 10829, 11711, 12376, 12428, 13384, 16252, 21658, 21749, 23422, 24856, 28441, 32504, 43316, 43498, 46844, 52819, 56882, 86632, 86996, 93688, 105638, 113764, 152243, 173992, 199087, 211276, 227528, 304486, 369733, 398174, 422552, 608972, 739466, 796348, 1217944, 1478932, 1592696, 2588131, 2957864, 5176262, 10352524, 20705048]

約数ペア:

[(1, 20705048), (2, 10352524), (4, 5176262), (7, 2957864), (8, 2588131), (13, 1592696), (14, 1478932), (17, 1217944), (26, 796348), (28, 739466), (34, 608972), (49, 422552), (52, 398174), (56, 369733), (68, 304486), (91, 227528), (98, 211276), (104, 199087), (119, 173992), (136, 152243), (182, 113764), (196, 105638), (221, 93688), (238, 86996), (239, 86632), (364, 56882), (392, 52819), (442, 46844), (476, 43498), (478, 43316), (637, 32504), (728, 28441), (833, 24856), (884, 23422), (952, 21749), (956, 21658), (1274, 16252), (1547, 13384), (1666, 12428), (1673, 12376), (1768, 11711), (1912, 10829), (2548, 8126), (3094, 6692), (3107, 6664), (3332, 6214), (3346, 6188), (4063, 5096)]