388889715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1\times {\mathrm{1723}}^1$

素因数の和:2139

約数の個数: 32

約数和(自身を含む): 639507456

約数和(自身を除く): 250617741

約数列:

[1, 3, 5, 15, 41, 123, 205, 367, 615, 1101, 1723, 1835, 5169, 5505, 8615, 15047, 25845, 45141, 70643, 75235, 211929, 225705, 353215, 632341, 1059645, 1897023, 3161705, 9485115, 25925981, 77777943, 129629905, 388889715]

約数ペア:

[(1, 388889715), (3, 129629905), (5, 77777943), (15, 25925981), (41, 9485115), (123, 3161705), (205, 1897023), (367, 1059645), (615, 632341), (1101, 353215), (1723, 225705), (1835, 211929), (5169, 75235), (5505, 70643), (8615, 45141), (15047, 25845)]