20178943360

素因数分解:

$2^7\times 5^1\times {\mathrm{113}}^1\times {\mathrm{279023}}^1$

素因数の和:279155

約数の個数: 64

約数和(自身を含む): 48667366080

約数和(自身を除く): 28488422720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 226, 320, 452, 565, 640, 904, 1130, 1808, 2260, 3616, 4520, 7232, 9040, 14464, 18080, 36160, 72320, 279023, 558046, 1116092, 1395115, 2232184, 2790230, 4464368, 5580460, 8928736, 11160920, 17857472, 22321840, 31529599, 35714944, 44643680, 63059198, 89287360, 126118396, 157647995, 178574720, 252236792, 315295990, 504473584, 630591980, 1008947168, 1261183960, 2017894336, 2522367920, 4035788672, 5044735840, 10089471680, 20178943360]

約数ペア:

[(1, 20178943360), (2, 10089471680), (4, 5044735840), (5, 4035788672), (8, 2522367920), (10, 2017894336), (16, 1261183960), (20, 1008947168), (32, 630591980), (40, 504473584), (64, 315295990), (80, 252236792), (113, 178574720), (128, 157647995), (160, 126118396), (226, 89287360), (320, 63059198), (452, 44643680), (565, 35714944), (640, 31529599), (904, 22321840), (1130, 17857472), (1808, 11160920), (2260, 8928736), (3616, 5580460), (4520, 4464368), (7232, 2790230), (9040, 2232184), (14464, 1395115), (18080, 1116092), (36160, 558046), (72320, 279023)]