20518440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1049}}^1$

素因数の和:1226

約数の個数: 64

約数和(自身を含む): 61992000

約数和(自身を除く): 41473560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 163, 326, 489, 652, 815, 978, 1049, 1304, 1630, 1956, 2098, 2445, 3147, 3260, 3912, 4196, 4890, 5245, 6294, 6520, 8392, 9780, 10490, 12588, 15735, 19560, 20980, 25176, 31470, 41960, 62940, 125880, 170987, 341974, 512961, 683948, 854935, 1025922, 1367896, 1709870, 2051844, 2564805, 3419740, 4103688, 5129610, 6839480, 10259220, 20518440]

約数ペア:

[(1, 20518440), (2, 10259220), (3, 6839480), (4, 5129610), (5, 4103688), (6, 3419740), (8, 2564805), (10, 2051844), (12, 1709870), (15, 1367896), (20, 1025922), (24, 854935), (30, 683948), (40, 512961), (60, 341974), (120, 170987), (163, 125880), (326, 62940), (489, 41960), (652, 31470), (815, 25176), (978, 20980), (1049, 19560), (1304, 15735), (1630, 12588), (1956, 10490), (2098, 9780), (2445, 8392), (3147, 6520), (3260, 6294), (3912, 5245), (4196, 4890)]