90406780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{367}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 193818240

約数和(自身を除く): 103411460

約数列:

[1, 2, 4, 5, 10, 20, 109, 113, 218, 226, 367, 436, 452, 545, 565, 734, 1090, 1130, 1468, 1835, 2180, 2260, 3670, 7340, 12317, 24634, 40003, 41471, 49268, 61585, 80006, 82942, 123170, 160012, 165884, 200015, 207355, 246340, 400030, 414710, 800060, 829420, 4520339, 9040678, 18081356, 22601695, 45203390, 90406780]

約数ペア:

[(1, 90406780), (2, 45203390), (4, 22601695), (5, 18081356), (10, 9040678), (20, 4520339), (109, 829420), (113, 800060), (218, 414710), (226, 400030), (367, 246340), (436, 207355), (452, 200015), (545, 165884), (565, 160012), (734, 123170), (1090, 82942), (1130, 80006), (1468, 61585), (1835, 49268), (2180, 41471), (2260, 40003), (3670, 24634), (7340, 12317)]