20172375

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 38438400

約数和(自身を除く): 18266025

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 139, 215, 225, 375, 387, 417, 645, 675, 695, 1075, 1125, 1161, 1251, 1935, 2085, 3225, 3375, 3475, 3753, 5375, 5805, 5977, 6255, 9675, 10425, 16125, 17375, 17931, 18765, 29025, 29885, 31275, 48375, 52125, 53793, 89655, 93825, 145125, 149425, 156375, 161379, 268965, 448275, 469125, 747125, 806895, 1344825, 2241375, 4034475, 6724125, 20172375]

約数ペア:

[(1, 20172375), (3, 6724125), (5, 4034475), (9, 2241375), (15, 1344825), (25, 806895), (27, 747125), (43, 469125), (45, 448275), (75, 268965), (125, 161379), (129, 156375), (135, 149425), (139, 145125), (215, 93825), (225, 89655), (375, 53793), (387, 52125), (417, 48375), (645, 31275), (675, 29885), (695, 29025), (1075, 18765), (1125, 17931), (1161, 17375), (1251, 16125), (1935, 10425), (2085, 9675), (3225, 6255), (3375, 5977), (3475, 5805), (3753, 5375)]