21332500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:107

約数の個数: 120

約数和(自身を含む): 56681856

約数和(自身を除く): 35349356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 53, 70, 92, 100, 106, 115, 125, 140, 161, 175, 212, 230, 250, 265, 322, 350, 371, 460, 500, 530, 575, 625, 644, 700, 742, 805, 875, 1060, 1150, 1219, 1250, 1325, 1484, 1610, 1750, 1855, 2300, 2438, 2500, 2650, 2875, 3220, 3500, 3710, 4025, 4375, 4876, 5300, 5750, 6095, 6625, 7420, 8050, 8533, 8750, 9275, 11500, 12190, 13250, 14375, 16100, 17066, 17500, 18550, 20125, 24380, 26500, 28750, 30475, 33125, 34132, 37100, 40250, 42665, 46375, 57500, 60950, 66250, 80500, 85330, 92750, 100625, 121900, 132500, 152375, 170660, 185500, 201250, 213325, 231875, 304750, 402500, 426650, 463750, 609500, 761875, 853300, 927500, 1066625, 1523750, 2133250, 3047500, 4266500, 5333125, 10666250, 21332500]

約数ペア:

[(1, 21332500), (2, 10666250), (4, 5333125), (5, 4266500), (7, 3047500), (10, 2133250), (14, 1523750), (20, 1066625), (23, 927500), (25, 853300), (28, 761875), (35, 609500), (46, 463750), (50, 426650), (53, 402500), (70, 304750), (92, 231875), (100, 213325), (106, 201250), (115, 185500), (125, 170660), (140, 152375), (161, 132500), (175, 121900), (212, 100625), (230, 92750), (250, 85330), (265, 80500), (322, 66250), (350, 60950), (371, 57500), (460, 46375), (500, 42665), (530, 40250), (575, 37100), (625, 34132), (644, 33125), (700, 30475), (742, 28750), (805, 26500), (875, 24380), (1060, 20125), (1150, 18550), (1219, 17500), (1250, 17066), (1325, 16100), (1484, 14375), (1610, 13250), (1750, 12190), (1855, 11500), (2300, 9275), (2438, 8750), (2500, 8533), (2650, 8050), (2875, 7420), (3220, 6625), (3500, 6095), (3710, 5750), (4025, 5300), (4375, 4876)]