321998640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3449}}^1$

素因数の和:3854

約数の個数: 80

約数和(自身を含む): 1001052000

約数和(自身を除く): 679053360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 389, 778, 1167, 1556, 1945, 2334, 3112, 3449, 3890, 4668, 5835, 6224, 6898, 7780, 9336, 10347, 11670, 13796, 15560, 17245, 18672, 20694, 23340, 27592, 31120, 34490, 41388, 46680, 51735, 55184, 68980, 82776, 93360, 103470, 137960, 165552, 206940, 275920, 413880, 827760, 1341661, 2683322, 4024983, 5366644, 6708305, 8049966, 10733288, 13416610, 16099932, 20124915, 21466576, 26833220, 32199864, 40249830, 53666440, 64399728, 80499660, 107332880, 160999320, 321998640]

約数ペア:

[(1, 321998640), (2, 160999320), (3, 107332880), (4, 80499660), (5, 64399728), (6, 53666440), (8, 40249830), (10, 32199864), (12, 26833220), (15, 21466576), (16, 20124915), (20, 16099932), (24, 13416610), (30, 10733288), (40, 8049966), (48, 6708305), (60, 5366644), (80, 4024983), (120, 2683322), (240, 1341661), (389, 827760), (778, 413880), (1167, 275920), (1556, 206940), (1945, 165552), (2334, 137960), (3112, 103470), (3449, 93360), (3890, 82776), (4668, 68980), (5835, 55184), (6224, 51735), (6898, 46680), (7780, 41388), (9336, 34490), (10347, 31120), (11670, 27592), (13796, 23340), (15560, 20694), (17245, 18672)]