20398049308

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{240509}}^1$

素因数の和:240766

約数の個数: 48

約数和(自身を含む): 44123002560

約数和(自身を除く): 23724953252

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 233, 364, 466, 932, 1631, 3029, 3262, 6058, 6524, 12116, 21203, 42406, 84812, 240509, 481018, 962036, 1683563, 3126617, 3367126, 6253234, 6734252, 12506468, 21886319, 43772638, 56038597, 87545276, 112077194, 224154388, 392270179, 728501761, 784540358, 1457003522, 1569080716, 2914007044, 5099512327, 10199024654, 20398049308]

約数ペア:

[(1, 20398049308), (2, 10199024654), (4, 5099512327), (7, 2914007044), (13, 1569080716), (14, 1457003522), (26, 784540358), (28, 728501761), (52, 392270179), (91, 224154388), (182, 112077194), (233, 87545276), (364, 56038597), (466, 43772638), (932, 21886319), (1631, 12506468), (3029, 6734252), (3262, 6253234), (6058, 3367126), (6524, 3126617), (12116, 1683563), (21203, 962036), (42406, 481018), (84812, 240509)]