28658175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:82

約数の個数: 144

約数和(自身を含む): 65352960

約数和(自身を除く): 36694785

約数列:

[1, 3, 5, 7, 13, 15, 17, 19, 21, 25, 35, 39, 51, 57, 65, 75, 85, 91, 95, 105, 119, 133, 169, 175, 195, 221, 247, 255, 273, 285, 323, 325, 357, 399, 425, 455, 475, 507, 525, 595, 663, 665, 741, 845, 969, 975, 1105, 1183, 1235, 1275, 1365, 1425, 1547, 1615, 1729, 1785, 1995, 2261, 2275, 2535, 2873, 2975, 3211, 3315, 3325, 3549, 3705, 4199, 4225, 4641, 4845, 5187, 5525, 5915, 6175, 6783, 6825, 7735, 8075, 8619, 8645, 8925, 9633, 9975, 11305, 12597, 12675, 14365, 16055, 16575, 17745, 18525, 20111, 20995, 22477, 23205, 24225, 25935, 29393, 29575, 33915, 38675, 43095, 43225, 48165, 54587, 56525, 60333, 62985, 67431, 71825, 80275, 88179, 88725, 100555, 104975, 112385, 116025, 129675, 146965, 163761, 169575, 215475, 240825, 272935, 301665, 314925, 337155, 382109, 440895, 502775, 561925, 734825, 818805, 1146327, 1364675, 1508325, 1685775, 1910545, 2204475, 4094025, 5731635, 9552725, 28658175]

約数ペア:

[(1, 28658175), (3, 9552725), (5, 5731635), (7, 4094025), (13, 2204475), (15, 1910545), (17, 1685775), (19, 1508325), (21, 1364675), (25, 1146327), (35, 818805), (39, 734825), (51, 561925), (57, 502775), (65, 440895), (75, 382109), (85, 337155), (91, 314925), (95, 301665), (105, 272935), (119, 240825), (133, 215475), (169, 169575), (175, 163761), (195, 146965), (221, 129675), (247, 116025), (255, 112385), (273, 104975), (285, 100555), (323, 88725), (325, 88179), (357, 80275), (399, 71825), (425, 67431), (455, 62985), (475, 60333), (507, 56525), (525, 54587), (595, 48165), (663, 43225), (665, 43095), (741, 38675), (845, 33915), (969, 29575), (975, 29393), (1105, 25935), (1183, 24225), (1235, 23205), (1275, 22477), (1365, 20995), (1425, 20111), (1547, 18525), (1615, 17745), (1729, 16575), (1785, 16055), (1995, 14365), (2261, 12675), (2275, 12597), (2535, 11305), (2873, 9975), (2975, 9633), (3211, 8925), (3315, 8645), (3325, 8619), (3549, 8075), (3705, 7735), (4199, 6825), (4225, 6783), (4641, 6175), (4845, 5915), (5187, 5525)]