72374715

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{521}}^1$

素因数の和:559

約数の個数: 80

約数和(自身を含む): 151588800

約数和(自身を除く): 79214085

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 343, 405, 441, 521, 567, 735, 945, 1029, 1323, 1563, 1715, 2205, 2605, 2835, 3087, 3647, 3969, 4689, 5145, 6615, 7815, 9261, 10941, 14067, 15435, 18235, 19845, 23445, 25529, 27783, 32823, 42201, 46305, 54705, 70335, 76587, 98469, 127645, 138915, 164115, 178703, 211005, 229761, 295407, 382935, 492345, 536109, 689283, 893515, 1148805, 1477035, 1608327, 2067849, 2680545, 3446415, 4824981, 8041635, 10339245, 14474943, 24124905, 72374715]

約数ペア:

[(1, 72374715), (3, 24124905), (5, 14474943), (7, 10339245), (9, 8041635), (15, 4824981), (21, 3446415), (27, 2680545), (35, 2067849), (45, 1608327), (49, 1477035), (63, 1148805), (81, 893515), (105, 689283), (135, 536109), (147, 492345), (189, 382935), (245, 295407), (315, 229761), (343, 211005), (405, 178703), (441, 164115), (521, 138915), (567, 127645), (735, 98469), (945, 76587), (1029, 70335), (1323, 54705), (1563, 46305), (1715, 42201), (2205, 32823), (2605, 27783), (2835, 25529), (3087, 23445), (3647, 19845), (3969, 18235), (4689, 15435), (5145, 14067), (6615, 10941), (7815, 9261)]