90687920

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2459}}^1$

素因数の和:2933

約数の個数: 40

約数和(自身を含む): 211392720

約数和(自身を除く): 120704800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 2459, 3688, 4610, 4918, 7376, 9220, 9836, 12295, 18440, 19672, 24590, 36880, 39344, 49180, 98360, 196720, 1133599, 2267198, 4534396, 5667995, 9068792, 11335990, 18137584, 22671980, 45343960, 90687920]

約数ペア:

[(1, 90687920), (2, 45343960), (4, 22671980), (5, 18137584), (8, 11335990), (10, 9068792), (16, 5667995), (20, 4534396), (40, 2267198), (80, 1133599), (461, 196720), (922, 98360), (1844, 49180), (2305, 39344), (2459, 36880), (3688, 24590), (4610, 19672), (4918, 18440), (7376, 12295), (9220, 9836)]