391142640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{232823}}^1$

素因数の和:232846

約数の個数: 80

約数和(自身を含む): 1385768448

約数和(自身を除く): 994625808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 232823, 465646, 698469, 931292, 1164115, 1396938, 1629761, 1862584, 2328230, 2793876, 3259522, 3492345, 3725168, 4656460, 4889283, 5587752, 6519044, 6984690, 8148805, 9312920, 9778566, 11175504, 13038088, 13969380, 16297610, 18625840, 19557132, 24446415, 26076176, 27938760, 32595220, 39114264, 48892830, 55877520, 65190440, 78228528, 97785660, 130380880, 195571320, 391142640]

約数ペア:

[(1, 391142640), (2, 195571320), (3, 130380880), (4, 97785660), (5, 78228528), (6, 65190440), (7, 55877520), (8, 48892830), (10, 39114264), (12, 32595220), (14, 27938760), (15, 26076176), (16, 24446415), (20, 19557132), (21, 18625840), (24, 16297610), (28, 13969380), (30, 13038088), (35, 11175504), (40, 9778566), (42, 9312920), (48, 8148805), (56, 6984690), (60, 6519044), (70, 5587752), (80, 4889283), (84, 4656460), (105, 3725168), (112, 3492345), (120, 3259522), (140, 2793876), (168, 2328230), (210, 1862584), (240, 1629761), (280, 1396938), (336, 1164115), (420, 931292), (560, 698469), (840, 465646), (1680, 232823)]