19980270

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1451}}^1$

素因数の和:1487

約数の個数: 80

約数和(自身を含む): 56924208

約数和(自身を除く): 36943938

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1451, 1530, 2295, 2754, 2902, 4353, 4590, 6885, 7255, 8706, 13059, 13770, 14510, 21765, 24667, 26118, 39177, 43530, 49334, 65295, 74001, 78354, 117531, 123335, 130590, 148002, 195885, 222003, 235062, 246670, 370005, 391770, 444006, 587655, 666009, 740010, 1110015, 1175310, 1332018, 1998027, 2220030, 3330045, 3996054, 6660090, 9990135, 19980270]

約数ペア:

[(1, 19980270), (2, 9990135), (3, 6660090), (5, 3996054), (6, 3330045), (9, 2220030), (10, 1998027), (15, 1332018), (17, 1175310), (18, 1110015), (27, 740010), (30, 666009), (34, 587655), (45, 444006), (51, 391770), (54, 370005), (81, 246670), (85, 235062), (90, 222003), (102, 195885), (135, 148002), (153, 130590), (162, 123335), (170, 117531), (255, 78354), (270, 74001), (306, 65295), (405, 49334), (459, 43530), (510, 39177), (765, 26118), (810, 24667), (918, 21765), (1377, 14510), (1451, 13770), (1530, 13059), (2295, 8706), (2754, 7255), (2902, 6885), (4353, 4590)]