18773848

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 39640320

約数和(自身を除く): 20866472

約数列:

[1, 2, 4, 8, 17, 31, 34, 61, 62, 68, 73, 122, 124, 136, 146, 244, 248, 292, 488, 527, 584, 1037, 1054, 1241, 1891, 2074, 2108, 2263, 2482, 3782, 4148, 4216, 4453, 4526, 4964, 7564, 8296, 8906, 9052, 9928, 15128, 17812, 18104, 32147, 35624, 38471, 64294, 75701, 76942, 128588, 138043, 151402, 153884, 257176, 276086, 302804, 307768, 552172, 605608, 1104344, 2346731, 4693462, 9386924, 18773848]

約数ペア:

[(1, 18773848), (2, 9386924), (4, 4693462), (8, 2346731), (17, 1104344), (31, 605608), (34, 552172), (61, 307768), (62, 302804), (68, 276086), (73, 257176), (122, 153884), (124, 151402), (136, 138043), (146, 128588), (244, 76942), (248, 75701), (292, 64294), (488, 38471), (527, 35624), (584, 32147), (1037, 18104), (1054, 17812), (1241, 15128), (1891, 9928), (2074, 9052), (2108, 8906), (2263, 8296), (2482, 7564), (3782, 4964), (4148, 4526), (4216, 4453)]