20531250

素因数分解:

$2^1\times 3^2\times 5^6\times {\mathrm{73}}^1$

素因数の和:111

約数の個数: 84

約数和(自身を含む): 56366466

約数和(自身を除く): 35835216

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 73, 75, 90, 125, 146, 150, 219, 225, 250, 365, 375, 438, 450, 625, 657, 730, 750, 1095, 1125, 1250, 1314, 1825, 1875, 2190, 2250, 3125, 3285, 3650, 3750, 5475, 5625, 6250, 6570, 9125, 9375, 10950, 11250, 15625, 16425, 18250, 18750, 27375, 28125, 31250, 32850, 45625, 46875, 54750, 56250, 82125, 91250, 93750, 136875, 140625, 164250, 228125, 273750, 281250, 410625, 456250, 684375, 821250, 1140625, 1368750, 2053125, 2281250, 3421875, 4106250, 6843750, 10265625, 20531250]

約数ペア:

[(1, 20531250), (2, 10265625), (3, 6843750), (5, 4106250), (6, 3421875), (9, 2281250), (10, 2053125), (15, 1368750), (18, 1140625), (25, 821250), (30, 684375), (45, 456250), (50, 410625), (73, 281250), (75, 273750), (90, 228125), (125, 164250), (146, 140625), (150, 136875), (219, 93750), (225, 91250), (250, 82125), (365, 56250), (375, 54750), (438, 46875), (450, 45625), (625, 32850), (657, 31250), (730, 28125), (750, 27375), (1095, 18750), (1125, 18250), (1250, 16425), (1314, 15625), (1825, 11250), (1875, 10950), (2190, 9375), (2250, 9125), (3125, 6570), (3285, 6250), (3650, 5625), (3750, 5475)]