20169900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 108

約数和(自身を含む): 64296232

約数和(自身を除く): 44126332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 73, 75, 90, 100, 146, 150, 180, 219, 225, 292, 300, 307, 365, 438, 450, 614, 657, 730, 876, 900, 921, 1095, 1228, 1314, 1460, 1535, 1825, 1842, 2190, 2628, 2763, 3070, 3285, 3650, 3684, 4380, 4605, 5475, 5526, 6140, 6570, 7300, 7675, 9210, 10950, 11052, 13140, 13815, 15350, 16425, 18420, 21900, 22411, 23025, 27630, 30700, 32850, 44822, 46050, 55260, 65700, 67233, 69075, 89644, 92100, 112055, 134466, 138150, 201699, 224110, 268932, 276300, 336165, 403398, 448220, 560275, 672330, 806796, 1008495, 1120550, 1344660, 1680825, 2016990, 2241100, 3361650, 4033980, 5042475, 6723300, 10084950, 20169900]

約数ペア:

[(1, 20169900), (2, 10084950), (3, 6723300), (4, 5042475), (5, 4033980), (6, 3361650), (9, 2241100), (10, 2016990), (12, 1680825), (15, 1344660), (18, 1120550), (20, 1008495), (25, 806796), (30, 672330), (36, 560275), (45, 448220), (50, 403398), (60, 336165), (73, 276300), (75, 268932), (90, 224110), (100, 201699), (146, 138150), (150, 134466), (180, 112055), (219, 92100), (225, 89644), (292, 69075), (300, 67233), (307, 65700), (365, 55260), (438, 46050), (450, 44822), (614, 32850), (657, 30700), (730, 27630), (876, 23025), (900, 22411), (921, 21900), (1095, 18420), (1228, 16425), (1314, 15350), (1460, 13815), (1535, 13140), (1825, 11052), (1842, 10950), (2190, 9210), (2628, 7675), (2763, 7300), (3070, 6570), (3285, 6140), (3650, 5526), (3684, 5475), (4380, 4605)]