257824020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{8123}}^1$

素因数の和:8181

約数の個数: 72

約数和(自身を含む): 754752096

約数和(自身を除く): 496928076

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 529, 690, 1058, 1380, 1587, 2116, 2645, 3174, 5290, 6348, 7935, 8123, 10580, 15870, 16246, 24369, 31740, 32492, 40615, 48738, 81230, 97476, 121845, 162460, 186829, 243690, 373658, 487380, 560487, 747316, 934145, 1120974, 1868290, 2241948, 2802435, 3736580, 4297067, 5604870, 8594134, 11209740, 12891201, 17188268, 21485335, 25782402, 42970670, 51564804, 64456005, 85941340, 128912010, 257824020]

約数ペア:

[(1, 257824020), (2, 128912010), (3, 85941340), (4, 64456005), (5, 51564804), (6, 42970670), (10, 25782402), (12, 21485335), (15, 17188268), (20, 12891201), (23, 11209740), (30, 8594134), (46, 5604870), (60, 4297067), (69, 3736580), (92, 2802435), (115, 2241948), (138, 1868290), (230, 1120974), (276, 934145), (345, 747316), (460, 560487), (529, 487380), (690, 373658), (1058, 243690), (1380, 186829), (1587, 162460), (2116, 121845), (2645, 97476), (3174, 81230), (5290, 48738), (6348, 40615), (7935, 32492), (8123, 31740), (10580, 24369), (15870, 16246)]