203640440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{124171}}^1$

素因数の和:124223

約数の個数: 32

約数和(自身を含む): 469370160

約数和(自身を除く): 265729720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 124171, 248342, 496684, 620855, 993368, 1241710, 2483420, 4966840, 5091011, 10182022, 20364044, 25455055, 40728088, 50910110, 101820220, 203640440]

約数ペア:

[(1, 203640440), (2, 101820220), (4, 50910110), (5, 40728088), (8, 25455055), (10, 20364044), (20, 10182022), (40, 5091011), (41, 4966840), (82, 2483420), (164, 1241710), (205, 993368), (328, 620855), (410, 496684), (820, 248342), (1640, 124171)]