39977920

素因数分解:

$2^6\times 5^1\times {\mathrm{271}}^1\times {\mathrm{461}}^1$

素因数の和:749

約数の個数: 56

約数和(自身を含む): 95755968

約数和(自身を除く): 55778048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 271, 320, 461, 542, 922, 1084, 1355, 1844, 2168, 2305, 2710, 3688, 4336, 4610, 5420, 7376, 8672, 9220, 10840, 14752, 17344, 18440, 21680, 29504, 36880, 43360, 73760, 86720, 124931, 147520, 249862, 499724, 624655, 999448, 1249310, 1998896, 2498620, 3997792, 4997240, 7995584, 9994480, 19988960, 39977920]

約数ペア:

[(1, 39977920), (2, 19988960), (4, 9994480), (5, 7995584), (8, 4997240), (10, 3997792), (16, 2498620), (20, 1998896), (32, 1249310), (40, 999448), (64, 624655), (80, 499724), (160, 249862), (271, 147520), (320, 124931), (461, 86720), (542, 73760), (922, 43360), (1084, 36880), (1355, 29504), (1844, 21680), (2168, 18440), (2305, 17344), (2710, 14752), (3688, 10840), (4336, 9220), (4610, 8672), (5420, 7376)]