30905875

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:78

約数の個数: 96

約数和(自身を含む): 54812160

約数和(自身を除く): 23906285

約数列:

[1, 5, 7, 11, 13, 19, 25, 35, 55, 65, 77, 91, 95, 125, 133, 143, 169, 175, 209, 247, 275, 325, 385, 455, 475, 665, 715, 845, 875, 1001, 1045, 1183, 1235, 1375, 1463, 1625, 1729, 1859, 1925, 2275, 2375, 2717, 3211, 3325, 3575, 4225, 5005, 5225, 5915, 6175, 7315, 8645, 9295, 9625, 11375, 13013, 13585, 16055, 16625, 17875, 19019, 21125, 22477, 25025, 26125, 29575, 30875, 35321, 36575, 43225, 46475, 65065, 67925, 80275, 95095, 112385, 125125, 147875, 176605, 182875, 216125, 232375, 247247, 325325, 339625, 401375, 475475, 561925, 883025, 1236235, 1626625, 2377375, 2809625, 4415125, 6181175, 30905875]

約数ペア:

[(1, 30905875), (5, 6181175), (7, 4415125), (11, 2809625), (13, 2377375), (19, 1626625), (25, 1236235), (35, 883025), (55, 561925), (65, 475475), (77, 401375), (91, 339625), (95, 325325), (125, 247247), (133, 232375), (143, 216125), (169, 182875), (175, 176605), (209, 147875), (247, 125125), (275, 112385), (325, 95095), (385, 80275), (455, 67925), (475, 65065), (665, 46475), (715, 43225), (845, 36575), (875, 35321), (1001, 30875), (1045, 29575), (1183, 26125), (1235, 25025), (1375, 22477), (1463, 21125), (1625, 19019), (1729, 17875), (1859, 16625), (1925, 16055), (2275, 13585), (2375, 13013), (2717, 11375), (3211, 9625), (3325, 9295), (3575, 8645), (4225, 7315), (5005, 6175), (5225, 5915)]