20479320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{349}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 67158000

約数和(自身を除く): 46678680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 163, 180, 326, 349, 360, 489, 652, 698, 815, 978, 1047, 1304, 1396, 1467, 1630, 1745, 1956, 2094, 2445, 2792, 2934, 3141, 3260, 3490, 3912, 4188, 4890, 5235, 5868, 6282, 6520, 6980, 7335, 8376, 9780, 10470, 11736, 12564, 13960, 14670, 15705, 19560, 20940, 25128, 29340, 31410, 41880, 56887, 58680, 62820, 113774, 125640, 170661, 227548, 284435, 341322, 455096, 511983, 568870, 682644, 853305, 1023966, 1137740, 1365288, 1706610, 2047932, 2275480, 2559915, 3413220, 4095864, 5119830, 6826440, 10239660, 20479320]

約数ペア:

[(1, 20479320), (2, 10239660), (3, 6826440), (4, 5119830), (5, 4095864), (6, 3413220), (8, 2559915), (9, 2275480), (10, 2047932), (12, 1706610), (15, 1365288), (18, 1137740), (20, 1023966), (24, 853305), (30, 682644), (36, 568870), (40, 511983), (45, 455096), (60, 341322), (72, 284435), (90, 227548), (120, 170661), (163, 125640), (180, 113774), (326, 62820), (349, 58680), (360, 56887), (489, 41880), (652, 31410), (698, 29340), (815, 25128), (978, 20940), (1047, 19560), (1304, 15705), (1396, 14670), (1467, 13960), (1630, 12564), (1745, 11736), (1956, 10470), (2094, 9780), (2445, 8376), (2792, 7335), (2934, 6980), (3141, 6520), (3260, 6282), (3490, 5868), (3912, 5235), (4188, 4890)]