64807480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{317}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 154548000

約数和(自身を除く): 89740520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 269, 317, 380, 538, 634, 760, 1076, 1268, 1345, 1585, 2152, 2536, 2690, 3170, 5111, 5380, 6023, 6340, 10222, 10760, 12046, 12680, 20444, 24092, 25555, 30115, 40888, 48184, 51110, 60230, 85273, 102220, 120460, 170546, 204440, 240920, 341092, 426365, 682184, 852730, 1620187, 1705460, 3240374, 3410920, 6480748, 8100935, 12961496, 16201870, 32403740, 64807480]

約数ペア:

[(1, 64807480), (2, 32403740), (4, 16201870), (5, 12961496), (8, 8100935), (10, 6480748), (19, 3410920), (20, 3240374), (38, 1705460), (40, 1620187), (76, 852730), (95, 682184), (152, 426365), (190, 341092), (269, 240920), (317, 204440), (380, 170546), (538, 120460), (634, 102220), (760, 85273), (1076, 60230), (1268, 51110), (1345, 48184), (1585, 40888), (2152, 30115), (2536, 25555), (2690, 24092), (3170, 20444), (5111, 12680), (5380, 12046), (6023, 10760), (6340, 10222)]