161958520

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{8783}}^1$

素因数の和:9255

約数の個数: 32

約数和(自身を含む): 365238720

約数和(自身を除く): 203280200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4610, 8783, 9220, 17566, 18440, 35132, 43915, 70264, 87830, 175660, 351320, 4048963, 8097926, 16195852, 20244815, 32391704, 40489630, 80979260, 161958520]

約数ペア:

[(1, 161958520), (2, 80979260), (4, 40489630), (5, 32391704), (8, 20244815), (10, 16195852), (20, 8097926), (40, 4048963), (461, 351320), (922, 175660), (1844, 87830), (2305, 70264), (3688, 43915), (4610, 35132), (8783, 18440), (9220, 17566)]