18910020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7687}}^1$

素因数の和:7740

約数の個数: 48

約数和(自身を含む): 54246528

約数和(自身を除く): 35336508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 7687, 15374, 23061, 30748, 38435, 46122, 76870, 92244, 115305, 153740, 230610, 315167, 461220, 630334, 945501, 1260668, 1575835, 1891002, 3151670, 3782004, 4727505, 6303340, 9455010, 18910020]

約数ペア:

[(1, 18910020), (2, 9455010), (3, 6303340), (4, 4727505), (5, 3782004), (6, 3151670), (10, 1891002), (12, 1575835), (15, 1260668), (20, 945501), (30, 630334), (41, 461220), (60, 315167), (82, 230610), (123, 153740), (164, 115305), (205, 92244), (246, 76870), (410, 46122), (492, 38435), (615, 30748), (820, 23061), (1230, 15374), (2460, 7687)]