20641770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 55728000

約数和(自身を除く): 35086230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 89, 90, 135, 178, 267, 270, 445, 534, 801, 859, 890, 1335, 1602, 1718, 2403, 2577, 2670, 4005, 4295, 4806, 5154, 7731, 8010, 8590, 12015, 12885, 15462, 23193, 24030, 25770, 38655, 46386, 76451, 77310, 115965, 152902, 229353, 231930, 382255, 458706, 688059, 764510, 1146765, 1376118, 2064177, 2293530, 3440295, 4128354, 6880590, 10320885, 20641770]

約数ペア:

[(1, 20641770), (2, 10320885), (3, 6880590), (5, 4128354), (6, 3440295), (9, 2293530), (10, 2064177), (15, 1376118), (18, 1146765), (27, 764510), (30, 688059), (45, 458706), (54, 382255), (89, 231930), (90, 229353), (135, 152902), (178, 115965), (267, 77310), (270, 76451), (445, 46386), (534, 38655), (801, 25770), (859, 24030), (890, 23193), (1335, 15462), (1602, 12885), (1718, 12015), (2403, 8590), (2577, 8010), (2670, 7731), (4005, 5154), (4295, 4806)]