20507580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12659}}^1$

素因数の和:12680

約数の個数: 60

約数和(自身を含む): 64338120

約数和(自身を除く): 43830540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12659, 25318, 37977, 50636, 63295, 75954, 113931, 126590, 151908, 189885, 227862, 253180, 341793, 379770, 455724, 569655, 683586, 759540, 1025379, 1139310, 1367172, 1708965, 2050758, 2278620, 3417930, 4101516, 5126895, 6835860, 10253790, 20507580]

約数ペア:

[(1, 20507580), (2, 10253790), (3, 6835860), (4, 5126895), (5, 4101516), (6, 3417930), (9, 2278620), (10, 2050758), (12, 1708965), (15, 1367172), (18, 1139310), (20, 1025379), (27, 759540), (30, 683586), (36, 569655), (45, 455724), (54, 379770), (60, 341793), (81, 253180), (90, 227862), (108, 189885), (135, 151908), (162, 126590), (180, 113931), (270, 75954), (324, 63295), (405, 50636), (540, 37977), (810, 25318), (1620, 12659)]