289171875

素因数分解:

$3^1\times 5^6\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 56

約数和(自身を含む): 499993600

約数和(自身を除く): 210821725

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 199, 375, 465, 597, 625, 775, 995, 1875, 2325, 2985, 3125, 3875, 4975, 6169, 9375, 11625, 14925, 15625, 18507, 19375, 24875, 30845, 46875, 58125, 74625, 92535, 96875, 124375, 154225, 290625, 373125, 462675, 484375, 621875, 771125, 1453125, 1865625, 2313375, 3109375, 3855625, 9328125, 11566875, 19278125, 57834375, 96390625, 289171875]

約数ペア:

[(1, 289171875), (3, 96390625), (5, 57834375), (15, 19278125), (25, 11566875), (31, 9328125), (75, 3855625), (93, 3109375), (125, 2313375), (155, 1865625), (199, 1453125), (375, 771125), (465, 621875), (597, 484375), (625, 462675), (775, 373125), (995, 290625), (1875, 154225), (2325, 124375), (2985, 96875), (3125, 92535), (3875, 74625), (4975, 58125), (6169, 46875), (9375, 30845), (11625, 24875), (14925, 19375), (15625, 18507)]