19940520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1553}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 60419520

約数和(自身を除く): 40479000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1553, 1605, 2140, 2568, 3106, 3210, 4280, 4659, 6212, 6420, 7765, 9318, 12424, 12840, 15530, 18636, 23295, 31060, 37272, 46590, 62120, 93180, 166171, 186360, 332342, 498513, 664684, 830855, 997026, 1329368, 1661710, 1994052, 2492565, 3323420, 3988104, 4985130, 6646840, 9970260, 19940520]

約数ペア:

[(1, 19940520), (2, 9970260), (3, 6646840), (4, 4985130), (5, 3988104), (6, 3323420), (8, 2492565), (10, 1994052), (12, 1661710), (15, 1329368), (20, 997026), (24, 830855), (30, 664684), (40, 498513), (60, 332342), (107, 186360), (120, 166171), (214, 93180), (321, 62120), (428, 46590), (535, 37272), (642, 31060), (856, 23295), (1070, 18636), (1284, 15530), (1553, 12840), (1605, 12424), (2140, 9318), (2568, 7765), (3106, 6420), (3210, 6212), (4280, 4659)]