281396440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{4261}}^1$

素因数の和:4412

約数の個数: 64

約数和(自身を含む): 687375360

約数和(自身を除く): 405978920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 254, 260, 508, 520, 635, 1016, 1270, 1651, 2540, 3302, 4261, 5080, 6604, 8255, 8522, 13208, 16510, 17044, 21305, 33020, 34088, 42610, 55393, 66040, 85220, 110786, 170440, 221572, 276965, 443144, 541147, 553930, 1082294, 1107860, 2164588, 2215720, 2705735, 4329176, 5411470, 7034911, 10822940, 14069822, 21645880, 28139644, 35174555, 56279288, 70349110, 140698220, 281396440]

約数ペア:

[(1, 281396440), (2, 140698220), (4, 70349110), (5, 56279288), (8, 35174555), (10, 28139644), (13, 21645880), (20, 14069822), (26, 10822940), (40, 7034911), (52, 5411470), (65, 4329176), (104, 2705735), (127, 2215720), (130, 2164588), (254, 1107860), (260, 1082294), (508, 553930), (520, 541147), (635, 443144), (1016, 276965), (1270, 221572), (1651, 170440), (2540, 110786), (3302, 85220), (4261, 66040), (5080, 55393), (6604, 42610), (8255, 34088), (8522, 33020), (13208, 21305), (16510, 17044)]