31640625

素因数分解:

$3^4\times 5^8$

素因数の和:52

約数の個数: 45

約数和(自身を含む): 59082001

約数和(自身を除く): 27441376

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 625, 675, 1125, 1875, 2025, 3125, 3375, 5625, 9375, 10125, 15625, 16875, 28125, 46875, 50625, 78125, 84375, 140625, 234375, 253125, 390625, 421875, 703125, 1171875, 1265625, 2109375, 3515625, 6328125, 10546875, 31640625]

約数ペア:

[(1, 31640625), (3, 10546875), (5, 6328125), (9, 3515625), (15, 2109375), (25, 1265625), (27, 1171875), (45, 703125), (75, 421875), (81, 390625), (125, 253125), (135, 234375), (225, 140625), (375, 84375), (405, 78125), (625, 50625), (675, 46875), (1125, 28125), (1875, 16875), (2025, 15625), (3125, 10125), (3375, 9375)]