81219375

素因数分解:

$3^3\times 5^4\times {\mathrm{4813}}^1$

素因数の和:4842

約数の個数: 40

約数和(自身を含む): 150389360

約数和(自身を除く): 69169985

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1875, 3375, 4813, 5625, 14439, 16875, 24065, 43317, 72195, 120325, 129951, 216585, 360975, 601625, 649755, 1082925, 1804875, 3008125, 3248775, 5414625, 9024375, 16243875, 27073125, 81219375]

約数ペア:

[(1, 81219375), (3, 27073125), (5, 16243875), (9, 9024375), (15, 5414625), (25, 3248775), (27, 3008125), (45, 1804875), (75, 1082925), (125, 649755), (135, 601625), (225, 360975), (375, 216585), (625, 129951), (675, 120325), (1125, 72195), (1875, 43317), (3375, 24065), (4813, 16875), (5625, 14439)]