20448990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1429}}^1$

素因数の和:1498

約数の個数: 64

約数和(自身を含む): 55598400

約数和(自身を除く): 35149410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 265, 270, 318, 477, 530, 795, 954, 1429, 1431, 1590, 2385, 2858, 2862, 4287, 4770, 7145, 7155, 8574, 12861, 14290, 14310, 21435, 25722, 38583, 42870, 64305, 75737, 77166, 128610, 151474, 192915, 227211, 378685, 385830, 454422, 681633, 757370, 1136055, 1363266, 2044899, 2272110, 3408165, 4089798, 6816330, 10224495, 20448990]

約数ペア:

[(1, 20448990), (2, 10224495), (3, 6816330), (5, 4089798), (6, 3408165), (9, 2272110), (10, 2044899), (15, 1363266), (18, 1136055), (27, 757370), (30, 681633), (45, 454422), (53, 385830), (54, 378685), (90, 227211), (106, 192915), (135, 151474), (159, 128610), (265, 77166), (270, 75737), (318, 64305), (477, 42870), (530, 38583), (795, 25722), (954, 21435), (1429, 14310), (1431, 14290), (1590, 12861), (2385, 8574), (2858, 7155), (2862, 7145), (4287, 4770)]