209758640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28813}}^1$

素因数の和:28846

約数の個数: 80

約数和(自身を含む): 600253248

約数和(自身を除く): 390494608

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 28813, 57626, 115252, 144065, 201691, 230504, 288130, 374569, 403382, 461008, 576260, 749138, 806764, 1008455, 1152520, 1498276, 1613528, 1872845, 2016910, 2305040, 2621983, 2996552, 3227056, 3745690, 4033820, 5243966, 5993104, 7491380, 8067640, 10487932, 13109915, 14982760, 16135280, 20975864, 26219830, 29965520, 41951728, 52439660, 104879320, 209758640]

約数ペア:

[(1, 209758640), (2, 104879320), (4, 52439660), (5, 41951728), (7, 29965520), (8, 26219830), (10, 20975864), (13, 16135280), (14, 14982760), (16, 13109915), (20, 10487932), (26, 8067640), (28, 7491380), (35, 5993104), (40, 5243966), (52, 4033820), (56, 3745690), (65, 3227056), (70, 2996552), (80, 2621983), (91, 2305040), (104, 2016910), (112, 1872845), (130, 1613528), (140, 1498276), (182, 1152520), (208, 1008455), (260, 806764), (280, 749138), (364, 576260), (455, 461008), (520, 403382), (560, 374569), (728, 288130), (910, 230504), (1040, 201691), (1456, 144065), (1820, 115252), (3640, 57626), (7280, 28813)]