505492780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1297}}^1\times {\mathrm{1499}}^1$

素因数の和:2818

約数の個数: 48

約数和(自身を含む): 1144836000

約数和(自身を除く): 639343220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1297, 1499, 2594, 2998, 5188, 5996, 6485, 7495, 12970, 14990, 16861, 19487, 25940, 29980, 33722, 38974, 67444, 77948, 84305, 97435, 168610, 194870, 337220, 389740, 1944203, 3888406, 7776812, 9721015, 19442030, 25274639, 38884060, 50549278, 101098556, 126373195, 252746390, 505492780]

約数ペア:

[(1, 505492780), (2, 252746390), (4, 126373195), (5, 101098556), (10, 50549278), (13, 38884060), (20, 25274639), (26, 19442030), (52, 9721015), (65, 7776812), (130, 3888406), (260, 1944203), (1297, 389740), (1499, 337220), (2594, 194870), (2998, 168610), (5188, 97435), (5996, 84305), (6485, 77948), (7495, 67444), (12970, 38974), (14990, 33722), (16861, 29980), (19487, 25940)]