291453160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1987}}^1$

素因数の和:2210

約数の個数: 64

約数和(自身を含む): 694209600

約数和(自身を除く): 402756440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 193, 380, 386, 760, 772, 965, 1544, 1930, 1987, 3667, 3860, 3974, 7334, 7720, 7948, 9935, 14668, 15896, 18335, 19870, 29336, 36670, 37753, 39740, 73340, 75506, 79480, 146680, 151012, 188765, 302024, 377530, 383491, 755060, 766982, 1510120, 1533964, 1917455, 3067928, 3834910, 7286329, 7669820, 14572658, 15339640, 29145316, 36431645, 58290632, 72863290, 145726580, 291453160]

約数ペア:

[(1, 291453160), (2, 145726580), (4, 72863290), (5, 58290632), (8, 36431645), (10, 29145316), (19, 15339640), (20, 14572658), (38, 7669820), (40, 7286329), (76, 3834910), (95, 3067928), (152, 1917455), (190, 1533964), (193, 1510120), (380, 766982), (386, 755060), (760, 383491), (772, 377530), (965, 302024), (1544, 188765), (1930, 151012), (1987, 146680), (3667, 79480), (3860, 75506), (3974, 73340), (7334, 39740), (7720, 37753), (7948, 36670), (9935, 29336), (14668, 19870), (15896, 18335)]