128435720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{1447}}^1$

素因数の和:1782

約数の個数: 64

約数和(自身を含む): 331534080

約数和(自身を除く): 203098360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 317, 634, 1268, 1447, 1585, 2219, 2536, 2894, 3170, 4438, 5788, 6340, 7235, 8876, 10129, 11095, 11576, 12680, 14470, 17752, 20258, 22190, 28940, 40516, 44380, 50645, 57880, 81032, 88760, 101290, 202580, 405160, 458699, 917398, 1834796, 2293495, 3210893, 3669592, 4586990, 6421786, 9173980, 12843572, 16054465, 18347960, 25687144, 32108930, 64217860, 128435720]

約数ペア:

[(1, 128435720), (2, 64217860), (4, 32108930), (5, 25687144), (7, 18347960), (8, 16054465), (10, 12843572), (14, 9173980), (20, 6421786), (28, 4586990), (35, 3669592), (40, 3210893), (56, 2293495), (70, 1834796), (140, 917398), (280, 458699), (317, 405160), (634, 202580), (1268, 101290), (1447, 88760), (1585, 81032), (2219, 57880), (2536, 50645), (2894, 44380), (3170, 40516), (4438, 28940), (5788, 22190), (6340, 20258), (7235, 17752), (8876, 14470), (10129, 12680), (11095, 11576)]