19979040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:514

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 43706400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 107, 120, 160, 214, 240, 321, 389, 428, 480, 535, 642, 778, 856, 1070, 1167, 1284, 1556, 1605, 1712, 1945, 2140, 2334, 2568, 3112, 3210, 3424, 3890, 4280, 4668, 5136, 5835, 6224, 6420, 7780, 8560, 9336, 10272, 11670, 12448, 12840, 15560, 17120, 18672, 23340, 25680, 31120, 37344, 41623, 46680, 51360, 62240, 83246, 93360, 124869, 166492, 186720, 208115, 249738, 332984, 416230, 499476, 624345, 665968, 832460, 998952, 1248690, 1331936, 1664920, 1997904, 2497380, 3329840, 3995808, 4994760, 6659680, 9989520, 19979040]

約数ペア:

[(1, 19979040), (2, 9989520), (3, 6659680), (4, 4994760), (5, 3995808), (6, 3329840), (8, 2497380), (10, 1997904), (12, 1664920), (15, 1331936), (16, 1248690), (20, 998952), (24, 832460), (30, 665968), (32, 624345), (40, 499476), (48, 416230), (60, 332984), (80, 249738), (96, 208115), (107, 186720), (120, 166492), (160, 124869), (214, 93360), (240, 83246), (321, 62240), (389, 51360), (428, 46680), (480, 41623), (535, 37344), (642, 31120), (778, 25680), (856, 23340), (1070, 18672), (1167, 17120), (1284, 15560), (1556, 12840), (1605, 12448), (1712, 11670), (1945, 10272), (2140, 9336), (2334, 8560), (2568, 7780), (3112, 6420), (3210, 6224), (3424, 5835), (3890, 5136), (4280, 4668)]