55485040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1721}}^1$

素因数の和:1778

約数の個数: 80

約数和(自身を含む): 143490816

約数和(自身を除く): 88005776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 1721, 2015, 2480, 3224, 3442, 4030, 6448, 6884, 8060, 8605, 13768, 16120, 17210, 22373, 27536, 32240, 34420, 44746, 53351, 68840, 89492, 106702, 111865, 137680, 178984, 213404, 223730, 266755, 357968, 426808, 447460, 533510, 693563, 853616, 894920, 1067020, 1387126, 1789840, 2134040, 2774252, 3467815, 4268080, 5548504, 6935630, 11097008, 13871260, 27742520, 55485040]

約数ペア:

[(1, 55485040), (2, 27742520), (4, 13871260), (5, 11097008), (8, 6935630), (10, 5548504), (13, 4268080), (16, 3467815), (20, 2774252), (26, 2134040), (31, 1789840), (40, 1387126), (52, 1067020), (62, 894920), (65, 853616), (80, 693563), (104, 533510), (124, 447460), (130, 426808), (155, 357968), (208, 266755), (248, 223730), (260, 213404), (310, 178984), (403, 137680), (496, 111865), (520, 106702), (620, 89492), (806, 68840), (1040, 53351), (1240, 44746), (1612, 34420), (1721, 32240), (2015, 27536), (2480, 22373), (3224, 17210), (3442, 16120), (4030, 13768), (6448, 8605), (6884, 8060)]