20199208420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{464777}}^1$

素因数の和:464880

約数の個数: 48

約数和(自身を含む): 44272893168

約数和(自身を除く): 24073684748

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 1060, 2173, 4346, 8692, 10865, 21730, 43460, 464777, 929554, 1859108, 2323885, 4647770, 9295540, 19055857, 24633181, 38111714, 49266362, 76223428, 95279285, 98532724, 123165905, 190558570, 246331810, 381117140, 492663620, 1009960421, 2019920842, 4039841684, 5049802105, 10099604210, 20199208420]

約数ペア:

[(1, 20199208420), (2, 10099604210), (4, 5049802105), (5, 4039841684), (10, 2019920842), (20, 1009960421), (41, 492663620), (53, 381117140), (82, 246331810), (106, 190558570), (164, 123165905), (205, 98532724), (212, 95279285), (265, 76223428), (410, 49266362), (530, 38111714), (820, 24633181), (1060, 19055857), (2173, 9295540), (4346, 4647770), (8692, 2323885), (10865, 1859108), (21730, 929554), (43460, 464777)]