140672140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{79}}^2$

素因数の和:204

約数の個数: 108

約数和(自身を含む): 363179376

約数和(自身を除く): 222507236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 79, 92, 98, 115, 140, 158, 161, 196, 230, 245, 316, 322, 395, 460, 490, 553, 644, 790, 805, 980, 1106, 1127, 1580, 1610, 1817, 2212, 2254, 2765, 3220, 3634, 3871, 4508, 5530, 5635, 6241, 7268, 7742, 9085, 11060, 11270, 12482, 12719, 15484, 18170, 19355, 22540, 24964, 25438, 31205, 36340, 38710, 43687, 50876, 62410, 63595, 77420, 87374, 89033, 124820, 127190, 143543, 174748, 178066, 218435, 254380, 287086, 305809, 356132, 436870, 445165, 574172, 611618, 717715, 873740, 890330, 1004801, 1223236, 1435430, 1529045, 1780660, 2009602, 2870860, 3058090, 4019204, 5024005, 6116180, 7033607, 10048010, 14067214, 20096020, 28134428, 35168035, 70336070, 140672140]

約数ペア:

[(1, 140672140), (2, 70336070), (4, 35168035), (5, 28134428), (7, 20096020), (10, 14067214), (14, 10048010), (20, 7033607), (23, 6116180), (28, 5024005), (35, 4019204), (46, 3058090), (49, 2870860), (70, 2009602), (79, 1780660), (92, 1529045), (98, 1435430), (115, 1223236), (140, 1004801), (158, 890330), (161, 873740), (196, 717715), (230, 611618), (245, 574172), (316, 445165), (322, 436870), (395, 356132), (460, 305809), (490, 287086), (553, 254380), (644, 218435), (790, 178066), (805, 174748), (980, 143543), (1106, 127190), (1127, 124820), (1580, 89033), (1610, 87374), (1817, 77420), (2212, 63595), (2254, 62410), (2765, 50876), (3220, 43687), (3634, 38710), (3871, 36340), (4508, 31205), (5530, 25438), (5635, 24964), (6241, 22540), (7268, 19355), (7742, 18170), (9085, 15484), (11060, 12719), (11270, 12482)]