9973125

素因数分解:

$3^4\times 5^4\times {\mathrm{197}}^1$

素因数の和:229

約数の個数: 50

約数和(自身を含む): 18711198

約数和(自身を除く): 8738073

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 197, 225, 375, 405, 591, 625, 675, 985, 1125, 1773, 1875, 2025, 2955, 3375, 4925, 5319, 5625, 8865, 10125, 14775, 15957, 16875, 24625, 26595, 44325, 50625, 73875, 79785, 123125, 132975, 221625, 369375, 398925, 664875, 1108125, 1994625, 3324375, 9973125]

約数ペア:

[(1, 9973125), (3, 3324375), (5, 1994625), (9, 1108125), (15, 664875), (25, 398925), (27, 369375), (45, 221625), (75, 132975), (81, 123125), (125, 79785), (135, 73875), (197, 50625), (225, 44325), (375, 26595), (405, 24625), (591, 16875), (625, 15957), (675, 14775), (985, 10125), (1125, 8865), (1773, 5625), (1875, 5319), (2025, 4925), (2955, 3375)]