278351140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{2213}}^1$

素因数の和:2572

約数の個数: 48

約数和(自身を含む): 617440320

約数和(自身を除く): 339089180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 331, 380, 662, 1324, 1655, 2213, 3310, 4426, 6289, 6620, 8852, 11065, 12578, 22130, 25156, 31445, 42047, 44260, 62890, 84094, 125780, 168188, 210235, 420470, 732503, 840940, 1465006, 2930012, 3662515, 7325030, 13917557, 14650060, 27835114, 55670228, 69587785, 139175570, 278351140]

約数ペア:

[(1, 278351140), (2, 139175570), (4, 69587785), (5, 55670228), (10, 27835114), (19, 14650060), (20, 13917557), (38, 7325030), (76, 3662515), (95, 2930012), (190, 1465006), (331, 840940), (380, 732503), (662, 420470), (1324, 210235), (1655, 168188), (2213, 125780), (3310, 84094), (4426, 62890), (6289, 44260), (6620, 42047), (8852, 31445), (11065, 25156), (12578, 22130)]