51391980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{5387}}^1$

素因数の和:5455

約数の個数: 72

約数和(自身を含む): 158859792

約数和(自身を除く): 107467812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 5387, 9540, 10774, 16161, 21548, 26935, 32322, 48483, 53870, 64644, 80805, 96966, 107740, 161610, 193932, 242415, 285511, 323220, 484830, 571022, 856533, 969660, 1142044, 1427555, 1713066, 2569599, 2855110, 3426132, 4282665, 5139198, 5710220, 8565330, 10278396, 12847995, 17130660, 25695990, 51391980]

約数ペア:

[(1, 51391980), (2, 25695990), (3, 17130660), (4, 12847995), (5, 10278396), (6, 8565330), (9, 5710220), (10, 5139198), (12, 4282665), (15, 3426132), (18, 2855110), (20, 2569599), (30, 1713066), (36, 1427555), (45, 1142044), (53, 969660), (60, 856533), (90, 571022), (106, 484830), (159, 323220), (180, 285511), (212, 242415), (265, 193932), (318, 161610), (477, 107740), (530, 96966), (636, 80805), (795, 64644), (954, 53870), (1060, 48483), (1590, 32322), (1908, 26935), (2385, 21548), (3180, 16161), (4770, 10774), (5387, 9540)]