254730015

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 476720640

約数和(自身を除く): 221990625

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 89, 111, 135, 185, 191, 267, 333, 405, 445, 555, 573, 801, 955, 999, 1335, 1665, 1719, 2403, 2865, 2997, 3293, 4005, 4995, 5157, 7067, 7209, 8595, 9879, 12015, 14985, 15471, 16465, 16999, 21201, 25785, 29637, 35335, 36045, 49395, 50997, 63603, 77355, 84995, 88911, 106005, 148185, 152991, 190809, 254985, 266733, 318015, 444555, 458973, 572427, 628963, 764955, 954045, 1333665, 1376919, 1886889, 2294865, 2862135, 3144815, 5660667, 6884595, 9434445, 16982001, 28303335, 50946003, 84910005, 254730015]

約数ペア:

[(1, 254730015), (3, 84910005), (5, 50946003), (9, 28303335), (15, 16982001), (27, 9434445), (37, 6884595), (45, 5660667), (81, 3144815), (89, 2862135), (111, 2294865), (135, 1886889), (185, 1376919), (191, 1333665), (267, 954045), (333, 764955), (405, 628963), (445, 572427), (555, 458973), (573, 444555), (801, 318015), (955, 266733), (999, 254985), (1335, 190809), (1665, 152991), (1719, 148185), (2403, 106005), (2865, 88911), (2997, 84995), (3293, 77355), (4005, 63603), (4995, 50997), (5157, 49395), (7067, 36045), (7209, 35335), (8595, 29637), (9879, 25785), (12015, 21201), (14985, 16999), (15471, 16465)]