28408875

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 52835328

約数和(自身を除く): 24426453

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 97, 125, 165, 213, 275, 291, 355, 375, 485, 781, 825, 1065, 1067, 1375, 1455, 1775, 2343, 2425, 3201, 3905, 4125, 5325, 5335, 6887, 7275, 8875, 11715, 12125, 16005, 19525, 20661, 26625, 26675, 34435, 36375, 58575, 75757, 80025, 97625, 103305, 133375, 172175, 227271, 292875, 378785, 400125, 516525, 860875, 1136355, 1893925, 2582625, 5681775, 9469625, 28408875]

約数ペア:

[(1, 28408875), (3, 9469625), (5, 5681775), (11, 2582625), (15, 1893925), (25, 1136355), (33, 860875), (55, 516525), (71, 400125), (75, 378785), (97, 292875), (125, 227271), (165, 172175), (213, 133375), (275, 103305), (291, 97625), (355, 80025), (375, 75757), (485, 58575), (781, 36375), (825, 34435), (1065, 26675), (1067, 26625), (1375, 20661), (1455, 19525), (1775, 16005), (2343, 12125), (2425, 11715), (3201, 8875), (3905, 7275), (4125, 6887), (5325, 5335)]