20353275

素因数分解:

$3^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:87

約数の個数: 90

約数和(自身を含む): 41486060

約数和(自身を除く): 21132785

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 27, 45, 57, 69, 75, 81, 95, 115, 135, 171, 207, 225, 285, 345, 405, 437, 475, 513, 529, 575, 621, 675, 855, 1035, 1311, 1425, 1539, 1587, 1725, 1863, 2025, 2185, 2565, 2645, 3105, 3933, 4275, 4761, 5175, 6555, 7695, 7935, 9315, 10051, 10925, 11799, 12825, 13225, 14283, 15525, 19665, 23805, 30153, 32775, 35397, 38475, 39675, 42849, 46575, 50255, 58995, 71415, 90459, 98325, 119025, 150765, 176985, 214245, 251275, 271377, 294975, 357075, 452295, 753825, 814131, 884925, 1071225, 1356885, 2261475, 4070655, 6784425, 20353275]

約数ペア:

[(1, 20353275), (3, 6784425), (5, 4070655), (9, 2261475), (15, 1356885), (19, 1071225), (23, 884925), (25, 814131), (27, 753825), (45, 452295), (57, 357075), (69, 294975), (75, 271377), (81, 251275), (95, 214245), (115, 176985), (135, 150765), (171, 119025), (207, 98325), (225, 90459), (285, 71415), (345, 58995), (405, 50255), (437, 46575), (475, 42849), (513, 39675), (529, 38475), (575, 35397), (621, 32775), (675, 30153), (855, 23805), (1035, 19665), (1311, 15525), (1425, 14283), (1539, 13225), (1587, 12825), (1725, 11799), (1863, 10925), (2025, 10051), (2185, 9315), (2565, 7935), (2645, 7695), (3105, 6555), (3933, 5175), (4275, 4761)]