206512875

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1490

約数の個数: 64

約数和(自身を含む): 390973440

約数和(自身を除く): 184460565

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 129, 135, 215, 225, 375, 387, 645, 675, 1075, 1125, 1161, 1423, 1935, 3225, 3375, 4269, 5375, 5805, 7115, 9675, 12807, 16125, 21345, 29025, 35575, 38421, 48375, 61189, 64035, 106725, 145125, 177875, 183567, 192105, 305945, 320175, 533625, 550701, 917835, 960525, 1529725, 1600875, 1652103, 2753505, 4589175, 4802625, 7648625, 8260515, 13767525, 22945875, 41302575, 68837625, 206512875]

約数ペア:

[(1, 206512875), (3, 68837625), (5, 41302575), (9, 22945875), (15, 13767525), (25, 8260515), (27, 7648625), (43, 4802625), (45, 4589175), (75, 2753505), (125, 1652103), (129, 1600875), (135, 1529725), (215, 960525), (225, 917835), (375, 550701), (387, 533625), (645, 320175), (675, 305945), (1075, 192105), (1125, 183567), (1161, 177875), (1423, 145125), (1935, 106725), (3225, 64035), (3375, 61189), (4269, 48375), (5375, 38421), (5805, 35575), (7115, 29025), (9675, 21345), (12807, 16125)]