28361445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 53975808

約数和(自身を除く): 25614363

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 705, 735, 821, 987, 1645, 2303, 2463, 4105, 4935, 5747, 6909, 11515, 12315, 17241, 28735, 34545, 38587, 40229, 86205, 115761, 120687, 192935, 201145, 270109, 578805, 603435, 810327, 1350545, 1890763, 4051635, 5672289, 9453815, 28361445]

約数ペア:

[(1, 28361445), (3, 9453815), (5, 5672289), (7, 4051635), (15, 1890763), (21, 1350545), (35, 810327), (47, 603435), (49, 578805), (105, 270109), (141, 201145), (147, 192935), (235, 120687), (245, 115761), (329, 86205), (705, 40229), (735, 38587), (821, 34545), (987, 28735), (1645, 17241), (2303, 12315), (2463, 11515), (4105, 6909), (4935, 5747)]