28514720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13709}}^1$

素因数の和:13737

約数の個数: 48

約数和(自身を含む): 72553320

約数和(自身を除く): 44038600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13709, 27418, 54836, 68545, 109672, 137090, 178217, 219344, 274180, 356434, 438688, 548360, 712868, 891085, 1096720, 1425736, 1782170, 2193440, 2851472, 3564340, 5702944, 7128680, 14257360, 28514720]

約数ペア:

[(1, 28514720), (2, 14257360), (4, 7128680), (5, 5702944), (8, 3564340), (10, 2851472), (13, 2193440), (16, 1782170), (20, 1425736), (26, 1096720), (32, 891085), (40, 712868), (52, 548360), (65, 438688), (80, 356434), (104, 274180), (130, 219344), (160, 178217), (208, 137090), (260, 109672), (416, 68545), (520, 54836), (1040, 27418), (2080, 13709)]