16720500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 49690368

約数和(自身を除く): 32969868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 125, 142, 150, 157, 213, 250, 284, 300, 314, 355, 375, 426, 471, 500, 628, 710, 750, 785, 852, 942, 1065, 1420, 1500, 1570, 1775, 1884, 2130, 2355, 3140, 3550, 3925, 4260, 4710, 5325, 7100, 7850, 8875, 9420, 10650, 11147, 11775, 15700, 17750, 19625, 21300, 22294, 23550, 26625, 33441, 35500, 39250, 44588, 47100, 53250, 55735, 58875, 66882, 78500, 106500, 111470, 117750, 133764, 167205, 222940, 235500, 278675, 334410, 557350, 668820, 836025, 1114700, 1393375, 1672050, 2786750, 3344100, 4180125, 5573500, 8360250, 16720500]

約数ペア:

[(1, 16720500), (2, 8360250), (3, 5573500), (4, 4180125), (5, 3344100), (6, 2786750), (10, 1672050), (12, 1393375), (15, 1114700), (20, 836025), (25, 668820), (30, 557350), (50, 334410), (60, 278675), (71, 235500), (75, 222940), (100, 167205), (125, 133764), (142, 117750), (150, 111470), (157, 106500), (213, 78500), (250, 66882), (284, 58875), (300, 55735), (314, 53250), (355, 47100), (375, 44588), (426, 39250), (471, 35500), (500, 33441), (628, 26625), (710, 23550), (750, 22294), (785, 21300), (852, 19625), (942, 17750), (1065, 15700), (1420, 11775), (1500, 11147), (1570, 10650), (1775, 9420), (1884, 8875), (2130, 7850), (2355, 7100), (3140, 5325), (3550, 4710), (3925, 4260)]