208959920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1$

素因数の和:319

約数の個数: 160

約数和(自身を含む): 566963712

約数和(自身を除く): 358003792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 53, 65, 68, 80, 85, 104, 106, 130, 136, 170, 208, 212, 221, 223, 260, 265, 272, 340, 424, 442, 446, 520, 530, 680, 689, 848, 884, 892, 901, 1040, 1060, 1105, 1115, 1360, 1378, 1768, 1784, 1802, 2120, 2210, 2230, 2756, 2899, 3445, 3536, 3568, 3604, 3791, 4240, 4420, 4460, 4505, 5512, 5798, 6890, 7208, 7582, 8840, 8920, 9010, 11024, 11596, 11713, 11819, 13780, 14416, 14495, 15164, 17680, 17840, 18020, 18955, 23192, 23426, 23638, 27560, 28990, 30328, 36040, 37910, 46384, 46852, 47276, 49283, 55120, 57980, 58565, 59095, 60656, 72080, 75820, 93704, 94552, 98566, 115960, 117130, 118190, 151640, 153647, 187408, 189104, 197132, 200923, 231920, 234260, 236380, 246415, 303280, 307294, 394264, 401846, 468520, 472760, 492830, 614588, 768235, 788528, 803692, 937040, 945520, 985660, 1004615, 1229176, 1536470, 1607384, 1971320, 2009230, 2458352, 2611999, 3072940, 3214768, 3942640, 4018460, 5223998, 6145880, 8036920, 10447996, 12291760, 13059995, 16073840, 20895992, 26119990, 41791984, 52239980, 104479960, 208959920]

約数ペア:

[(1, 208959920), (2, 104479960), (4, 52239980), (5, 41791984), (8, 26119990), (10, 20895992), (13, 16073840), (16, 13059995), (17, 12291760), (20, 10447996), (26, 8036920), (34, 6145880), (40, 5223998), (52, 4018460), (53, 3942640), (65, 3214768), (68, 3072940), (80, 2611999), (85, 2458352), (104, 2009230), (106, 1971320), (130, 1607384), (136, 1536470), (170, 1229176), (208, 1004615), (212, 985660), (221, 945520), (223, 937040), (260, 803692), (265, 788528), (272, 768235), (340, 614588), (424, 492830), (442, 472760), (446, 468520), (520, 401846), (530, 394264), (680, 307294), (689, 303280), (848, 246415), (884, 236380), (892, 234260), (901, 231920), (1040, 200923), (1060, 197132), (1105, 189104), (1115, 187408), (1360, 153647), (1378, 151640), (1768, 118190), (1784, 117130), (1802, 115960), (2120, 98566), (2210, 94552), (2230, 93704), (2756, 75820), (2899, 72080), (3445, 60656), (3536, 59095), (3568, 58565), (3604, 57980), (3791, 55120), (4240, 49283), (4420, 47276), (4460, 46852), (4505, 46384), (5512, 37910), (5798, 36040), (6890, 30328), (7208, 28990), (7582, 27560), (8840, 23638), (8920, 23426), (9010, 23192), (11024, 18955), (11596, 18020), (11713, 17840), (11819, 17680), (13780, 15164), (14416, 14495)]