211433740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:415

約数の個数: 96

約数和(自身を含む): 522547200

約数和(自身を除く): 311113460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 89, 140, 142, 178, 239, 284, 355, 356, 445, 478, 497, 623, 710, 890, 956, 994, 1195, 1246, 1420, 1673, 1780, 1988, 2390, 2485, 2492, 3115, 3346, 4780, 4970, 6230, 6319, 6692, 8365, 9940, 12460, 12638, 16730, 16969, 21271, 25276, 31595, 33460, 33938, 42542, 44233, 63190, 67876, 84845, 85084, 88466, 106355, 118783, 126380, 148897, 169690, 176932, 212710, 221165, 237566, 297794, 339380, 425420, 442330, 475132, 593915, 595588, 744485, 884660, 1187830, 1488970, 1510241, 2375660, 2977940, 3020482, 6040964, 7551205, 10571687, 15102410, 21143374, 30204820, 42286748, 52858435, 105716870, 211433740]

約数ペア:

[(1, 211433740), (2, 105716870), (4, 52858435), (5, 42286748), (7, 30204820), (10, 21143374), (14, 15102410), (20, 10571687), (28, 7551205), (35, 6040964), (70, 3020482), (71, 2977940), (89, 2375660), (140, 1510241), (142, 1488970), (178, 1187830), (239, 884660), (284, 744485), (355, 595588), (356, 593915), (445, 475132), (478, 442330), (497, 425420), (623, 339380), (710, 297794), (890, 237566), (956, 221165), (994, 212710), (1195, 176932), (1246, 169690), (1420, 148897), (1673, 126380), (1780, 118783), (1988, 106355), (2390, 88466), (2485, 85084), (2492, 84845), (3115, 67876), (3346, 63190), (4780, 44233), (4970, 42542), (6230, 33938), (6319, 33460), (6692, 31595), (8365, 25276), (9940, 21271), (12460, 16969), (12638, 16730)]