20758260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 41334540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 131, 139, 190, 228, 262, 278, 285, 380, 393, 417, 524, 556, 570, 655, 695, 786, 834, 1140, 1310, 1390, 1572, 1668, 1965, 2085, 2489, 2620, 2641, 2780, 3930, 4170, 4978, 5282, 7467, 7860, 7923, 8340, 9956, 10564, 12445, 13205, 14934, 15846, 18209, 24890, 26410, 29868, 31692, 36418, 37335, 39615, 49780, 52820, 54627, 72836, 74670, 79230, 91045, 109254, 149340, 158460, 182090, 218508, 273135, 345971, 364180, 546270, 691942, 1037913, 1092540, 1383884, 1729855, 2075826, 3459710, 4151652, 5189565, 6919420, 10379130, 20758260]

約数ペア:

[(1, 20758260), (2, 10379130), (3, 6919420), (4, 5189565), (5, 4151652), (6, 3459710), (10, 2075826), (12, 1729855), (15, 1383884), (19, 1092540), (20, 1037913), (30, 691942), (38, 546270), (57, 364180), (60, 345971), (76, 273135), (95, 218508), (114, 182090), (131, 158460), (139, 149340), (190, 109254), (228, 91045), (262, 79230), (278, 74670), (285, 72836), (380, 54627), (393, 52820), (417, 49780), (524, 39615), (556, 37335), (570, 36418), (655, 31692), (695, 29868), (786, 26410), (834, 24890), (1140, 18209), (1310, 15846), (1390, 14934), (1572, 13205), (1668, 12445), (1965, 10564), (2085, 9956), (2489, 8340), (2620, 7923), (2641, 7860), (2780, 7467), (3930, 5282), (4170, 4978)]