25187960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 67223520

約数和(自身を除く): 42035560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 181, 196, 245, 280, 284, 355, 362, 392, 490, 497, 568, 710, 724, 905, 980, 994, 1267, 1420, 1448, 1810, 1960, 1988, 2485, 2534, 2840, 3479, 3620, 3976, 4970, 5068, 6335, 6958, 7240, 8869, 9940, 10136, 12670, 12851, 13916, 17395, 17738, 19880, 25340, 25702, 27832, 34790, 35476, 44345, 50680, 51404, 64255, 69580, 70952, 88690, 89957, 102808, 128510, 139160, 177380, 179914, 257020, 354760, 359828, 449785, 514040, 629699, 719656, 899570, 1259398, 1799140, 2518796, 3148495, 3598280, 5037592, 6296990, 12593980, 25187960]

約数ペア:

[(1, 25187960), (2, 12593980), (4, 6296990), (5, 5037592), (7, 3598280), (8, 3148495), (10, 2518796), (14, 1799140), (20, 1259398), (28, 899570), (35, 719656), (40, 629699), (49, 514040), (56, 449785), (70, 359828), (71, 354760), (98, 257020), (140, 179914), (142, 177380), (181, 139160), (196, 128510), (245, 102808), (280, 89957), (284, 88690), (355, 70952), (362, 69580), (392, 64255), (490, 51404), (497, 50680), (568, 44345), (710, 35476), (724, 34790), (905, 27832), (980, 25702), (994, 25340), (1267, 19880), (1420, 17738), (1448, 17395), (1810, 13916), (1960, 12851), (1988, 12670), (2485, 10136), (2534, 9940), (2840, 8869), (3479, 7240), (3620, 6958), (3976, 6335), (4970, 5068)]