279876675

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 509753088

約数和(自身を除く): 229876413

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 71, 75, 169, 195, 213, 311, 325, 355, 507, 845, 923, 933, 975, 1065, 1555, 1775, 2535, 2769, 4043, 4225, 4615, 4665, 5325, 7775, 11999, 12129, 12675, 13845, 20215, 22081, 23075, 23325, 35997, 52559, 59995, 60645, 66243, 69225, 101075, 110405, 157677, 179985, 262795, 287053, 299975, 303225, 331215, 552025, 788385, 861159, 899925, 1313975, 1435265, 1656075, 3731689, 3941925, 4305795, 7176325, 11195067, 18658445, 21528975, 55975335, 93292225, 279876675]

約数ペア:

[(1, 279876675), (3, 93292225), (5, 55975335), (13, 21528975), (15, 18658445), (25, 11195067), (39, 7176325), (65, 4305795), (71, 3941925), (75, 3731689), (169, 1656075), (195, 1435265), (213, 1313975), (311, 899925), (325, 861159), (355, 788385), (507, 552025), (845, 331215), (923, 303225), (933, 299975), (975, 287053), (1065, 262795), (1555, 179985), (1775, 157677), (2535, 110405), (2769, 101075), (4043, 69225), (4225, 66243), (4615, 60645), (4665, 59995), (5325, 52559), (7775, 35997), (11999, 23325), (12129, 23075), (12675, 22081), (13845, 20215)]