2808975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 5194112

約数和(自身を除く): 2385137

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 67, 75, 129, 195, 201, 215, 325, 335, 559, 645, 871, 975, 1005, 1075, 1675, 1677, 2613, 2795, 2881, 3225, 4355, 5025, 8385, 8643, 13065, 13975, 14405, 21775, 37453, 41925, 43215, 65325, 72025, 112359, 187265, 216075, 561795, 936325, 2808975]

約数ペア:

[(1, 2808975), (3, 936325), (5, 561795), (13, 216075), (15, 187265), (25, 112359), (39, 72025), (43, 65325), (65, 43215), (67, 41925), (75, 37453), (129, 21775), (195, 14405), (201, 13975), (215, 13065), (325, 8643), (335, 8385), (559, 5025), (645, 4355), (871, 3225), (975, 2881), (1005, 2795), (1075, 2613), (1675, 1677)]