20276560

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1327}}^1$

素因数の和:1531

約数の個数: 40

約数和(自身を含む): 47425536

約数和(自身を除く): 27148976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1327, 1528, 1910, 2654, 3056, 3820, 5308, 6635, 7640, 10616, 13270, 15280, 21232, 26540, 53080, 106160, 253457, 506914, 1013828, 1267285, 2027656, 2534570, 4055312, 5069140, 10138280, 20276560]

約数ペア:

[(1, 20276560), (2, 10138280), (4, 5069140), (5, 4055312), (8, 2534570), (10, 2027656), (16, 1267285), (20, 1013828), (40, 506914), (80, 253457), (191, 106160), (382, 53080), (764, 26540), (955, 21232), (1327, 15280), (1528, 13270), (1910, 10616), (2654, 7640), (3056, 6635), (3820, 5308)]