71407575

素因数分解:

$3^4\times 5^2\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:398

約数の個数: 60

約数和(自身を含む): 133685640

約数和(自身を除く): 62278065

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 179, 197, 225, 405, 537, 591, 675, 895, 985, 1611, 1773, 2025, 2685, 2955, 4475, 4833, 4925, 5319, 8055, 8865, 13425, 14499, 14775, 15957, 24165, 26595, 35263, 40275, 44325, 72495, 79785, 105789, 120825, 132975, 176315, 317367, 362475, 398925, 528945, 881575, 952101, 1586835, 2644725, 2856303, 4760505, 7934175, 14281515, 23802525, 71407575]

約数ペア:

[(1, 71407575), (3, 23802525), (5, 14281515), (9, 7934175), (15, 4760505), (25, 2856303), (27, 2644725), (45, 1586835), (75, 952101), (81, 881575), (135, 528945), (179, 398925), (197, 362475), (225, 317367), (405, 176315), (537, 132975), (591, 120825), (675, 105789), (895, 79785), (985, 72495), (1611, 44325), (1773, 40275), (2025, 35263), (2685, 26595), (2955, 24165), (4475, 15957), (4833, 14775), (4925, 14499), (5319, 13425), (8055, 8865)]