18207240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2137}}^1$

素因数の和:2222

約数の個数: 64

約数和(自身を含む): 55416960

約数和(自身を除く): 37209720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2137, 2840, 4260, 4274, 6411, 8520, 8548, 10685, 12822, 17096, 21370, 25644, 32055, 42740, 51288, 64110, 85480, 128220, 151727, 256440, 303454, 455181, 606908, 758635, 910362, 1213816, 1517270, 1820724, 2275905, 3034540, 3641448, 4551810, 6069080, 9103620, 18207240]

約数ペア:

[(1, 18207240), (2, 9103620), (3, 6069080), (4, 4551810), (5, 3641448), (6, 3034540), (8, 2275905), (10, 1820724), (12, 1517270), (15, 1213816), (20, 910362), (24, 758635), (30, 606908), (40, 455181), (60, 303454), (71, 256440), (120, 151727), (142, 128220), (213, 85480), (284, 64110), (355, 51288), (426, 42740), (568, 32055), (710, 25644), (852, 21370), (1065, 17096), (1420, 12822), (1704, 10685), (2130, 8548), (2137, 8520), (2840, 6411), (4260, 4274)]