89719860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21061}}^1$

素因数の和:21144

約数の個数: 48

約数和(自身を含む): 254765952

約数和(自身を除く): 165046092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 21061, 42122, 63183, 84244, 105305, 126366, 210610, 252732, 315915, 421220, 631830, 1263660, 1495331, 2990662, 4485993, 5981324, 7476655, 8971986, 14953310, 17943972, 22429965, 29906620, 44859930, 89719860]

約数ペア:

[(1, 89719860), (2, 44859930), (3, 29906620), (4, 22429965), (5, 17943972), (6, 14953310), (10, 8971986), (12, 7476655), (15, 5981324), (20, 4485993), (30, 2990662), (60, 1495331), (71, 1263660), (142, 631830), (213, 421220), (284, 315915), (355, 252732), (426, 210610), (710, 126366), (852, 105305), (1065, 84244), (1420, 63183), (2130, 42122), (4260, 21061)]