4187980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 9434880

約数和(自身を除く): 5246900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 107, 190, 206, 214, 380, 412, 428, 515, 535, 1030, 1070, 1957, 2033, 2060, 2140, 3914, 4066, 7828, 8132, 9785, 10165, 11021, 19570, 20330, 22042, 39140, 40660, 44084, 55105, 110210, 209399, 220420, 418798, 837596, 1046995, 2093990, 4187980]

約数ペア:

[(1, 4187980), (2, 2093990), (4, 1046995), (5, 837596), (10, 418798), (19, 220420), (20, 209399), (38, 110210), (76, 55105), (95, 44084), (103, 40660), (107, 39140), (190, 22042), (206, 20330), (214, 19570), (380, 11021), (412, 10165), (428, 9785), (515, 8132), (535, 7828), (1030, 4066), (1070, 3914), (1957, 2140), (2033, 2060)]