18997620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2417}}^1$

素因数の和:2560

約数の個数: 48

約数和(自身を含む): 53621568

約数和(自身を除く): 34623948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2417, 2620, 3930, 4834, 7251, 7860, 9668, 12085, 14502, 24170, 29004, 36255, 48340, 72510, 145020, 316627, 633254, 949881, 1266508, 1583135, 1899762, 3166270, 3799524, 4749405, 6332540, 9498810, 18997620]

約数ペア:

[(1, 18997620), (2, 9498810), (3, 6332540), (4, 4749405), (5, 3799524), (6, 3166270), (10, 1899762), (12, 1583135), (15, 1266508), (20, 949881), (30, 633254), (60, 316627), (131, 145020), (262, 72510), (393, 48340), (524, 36255), (655, 29004), (786, 24170), (1310, 14502), (1572, 12085), (1965, 9668), (2417, 7860), (2620, 7251), (3930, 4834)]