131396440

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 352656000

約数和(自身を除く): 221259560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 140, 157, 196, 244, 245, 280, 305, 314, 343, 392, 427, 488, 490, 610, 628, 686, 785, 854, 980, 1099, 1220, 1256, 1372, 1570, 1708, 1715, 1960, 2135, 2198, 2440, 2744, 2989, 3140, 3416, 3430, 4270, 4396, 5495, 5978, 6280, 6860, 7693, 8540, 8792, 9577, 10990, 11956, 13720, 14945, 15386, 17080, 19154, 20923, 21980, 23912, 29890, 30772, 38308, 38465, 41846, 43960, 47885, 53851, 59780, 61544, 67039, 76616, 76930, 83692, 95770, 104615, 107702, 119560, 134078, 153860, 167384, 191540, 209230, 215404, 268156, 269255, 307720, 335195, 383080, 418460, 430808, 469273, 536312, 538510, 670390, 836920, 938546, 1077020, 1340780, 1877092, 2154040, 2346365, 2681560, 3284911, 3754184, 4692730, 6569822, 9385460, 13139644, 16424555, 18770920, 26279288, 32849110, 65698220, 131396440]

約数ペア:

[(1, 131396440), (2, 65698220), (4, 32849110), (5, 26279288), (7, 18770920), (8, 16424555), (10, 13139644), (14, 9385460), (20, 6569822), (28, 4692730), (35, 3754184), (40, 3284911), (49, 2681560), (56, 2346365), (61, 2154040), (70, 1877092), (98, 1340780), (122, 1077020), (140, 938546), (157, 836920), (196, 670390), (244, 538510), (245, 536312), (280, 469273), (305, 430808), (314, 418460), (343, 383080), (392, 335195), (427, 307720), (488, 269255), (490, 268156), (610, 215404), (628, 209230), (686, 191540), (785, 167384), (854, 153860), (980, 134078), (1099, 119560), (1220, 107702), (1256, 104615), (1372, 95770), (1570, 83692), (1708, 76930), (1715, 76616), (1960, 67039), (2135, 61544), (2198, 59780), (2440, 53851), (2744, 47885), (2989, 43960), (3140, 41846), (3416, 38465), (3430, 38308), (4270, 30772), (4396, 29890), (5495, 23912), (5978, 21980), (6280, 20923), (6860, 19154), (7693, 17080), (8540, 15386), (8792, 14945), (9577, 13720), (10990, 11956)]