90157960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 208166400

約数和(自身を除く): 118008440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 103, 158, 206, 277, 316, 395, 412, 515, 554, 632, 790, 824, 1030, 1108, 1385, 1580, 2060, 2216, 2770, 3160, 4120, 5540, 8137, 11080, 16274, 21883, 28531, 32548, 40685, 43766, 57062, 65096, 81370, 87532, 109415, 114124, 142655, 162740, 175064, 218830, 228248, 285310, 325480, 437660, 570620, 875320, 1141240, 2253949, 4507898, 9015796, 11269745, 18031592, 22539490, 45078980, 90157960]

約数ペア:

[(1, 90157960), (2, 45078980), (4, 22539490), (5, 18031592), (8, 11269745), (10, 9015796), (20, 4507898), (40, 2253949), (79, 1141240), (103, 875320), (158, 570620), (206, 437660), (277, 325480), (316, 285310), (395, 228248), (412, 218830), (515, 175064), (554, 162740), (632, 142655), (790, 114124), (824, 109415), (1030, 87532), (1108, 81370), (1385, 65096), (1580, 57062), (2060, 43766), (2216, 40685), (2770, 32548), (3160, 28531), (4120, 21883), (5540, 16274), (8137, 11080)]