257981436

素因数分解:

$2^2\times 3^6\times {\mathrm{88471}}^1$

素因数の和:88493

約数の個数: 42

約数和(自身を含む): 676899272

約数和(自身を除く): 418917836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 88471, 176942, 265413, 353884, 530826, 796239, 1061652, 1592478, 2388717, 3184956, 4777434, 7166151, 9554868, 14332302, 21498453, 28664604, 42996906, 64495359, 85993812, 128990718, 257981436]

約数ペア:

[(1, 257981436), (2, 128990718), (3, 85993812), (4, 64495359), (6, 42996906), (9, 28664604), (12, 21498453), (18, 14332302), (27, 9554868), (36, 7166151), (54, 4777434), (81, 3184956), (108, 2388717), (162, 1592478), (243, 1061652), (324, 796239), (486, 530826), (729, 353884), (972, 265413), (1458, 176942), (2916, 88471)]