1617188080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{331391}}^1$

素因数の和:331465

約数の個数: 40

約数和(自身を含む): 3821612544

約数和(自身を除く): 2204424464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 331391, 662782, 1325564, 1656955, 2651128, 3313910, 5302256, 6627820, 13255640, 20214851, 26511280, 40429702, 80859404, 101074255, 161718808, 202148510, 323437616, 404297020, 808594040, 1617188080]

約数ペア:

[(1, 1617188080), (2, 808594040), (4, 404297020), (5, 323437616), (8, 202148510), (10, 161718808), (16, 101074255), (20, 80859404), (40, 40429702), (61, 26511280), (80, 20214851), (122, 13255640), (244, 6627820), (305, 5302256), (488, 3313910), (610, 2651128), (976, 1656955), (1220, 1325564), (2440, 662782), (4880, 331391)]