20156625

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 40884480

約数和(自身を除く): 20727855

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 41, 45, 57, 69, 75, 95, 115, 123, 125, 171, 205, 207, 225, 285, 345, 369, 375, 437, 475, 575, 615, 779, 855, 943, 1025, 1035, 1125, 1311, 1425, 1725, 1845, 2185, 2337, 2375, 2829, 2875, 3075, 3895, 3933, 4275, 4715, 5125, 5175, 6555, 7011, 7125, 8487, 8625, 9225, 10925, 11685, 14145, 15375, 17917, 19475, 19665, 21375, 23575, 25875, 32775, 35055, 42435, 46125, 53751, 54625, 58425, 70725, 89585, 97375, 98325, 117875, 161253, 163875, 175275, 212175, 268755, 292125, 353625, 447925, 491625, 806265, 876375, 1060875, 1343775, 2239625, 4031325, 6718875, 20156625]

約数ペア:

[(1, 20156625), (3, 6718875), (5, 4031325), (9, 2239625), (15, 1343775), (19, 1060875), (23, 876375), (25, 806265), (41, 491625), (45, 447925), (57, 353625), (69, 292125), (75, 268755), (95, 212175), (115, 175275), (123, 163875), (125, 161253), (171, 117875), (205, 98325), (207, 97375), (225, 89585), (285, 70725), (345, 58425), (369, 54625), (375, 53751), (437, 46125), (475, 42435), (575, 35055), (615, 32775), (779, 25875), (855, 23575), (943, 21375), (1025, 19665), (1035, 19475), (1125, 17917), (1311, 15375), (1425, 14145), (1725, 11685), (1845, 10925), (2185, 9225), (2337, 8625), (2375, 8487), (2829, 7125), (2875, 7011), (3075, 6555), (3895, 5175), (3933, 5125), (4275, 4715)]