1640648920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{45523}}^1$

素因数の和:45604

約数の個数: 64

約数和(自身を含む): 3982439520

約数和(自身を除く): 2341790600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 530, 680, 901, 1060, 1802, 2120, 3604, 4505, 7208, 9010, 18020, 36040, 45523, 91046, 182092, 227615, 364184, 455230, 773891, 910460, 1547782, 1820920, 2412719, 3095564, 3869455, 4825438, 6191128, 7738910, 9650876, 12063595, 15477820, 19301752, 24127190, 30955640, 41016223, 48254380, 82032446, 96508760, 164064892, 205081115, 328129784, 410162230, 820324460, 1640648920]

約数ペア:

[(1, 1640648920), (2, 820324460), (4, 410162230), (5, 328129784), (8, 205081115), (10, 164064892), (17, 96508760), (20, 82032446), (34, 48254380), (40, 41016223), (53, 30955640), (68, 24127190), (85, 19301752), (106, 15477820), (136, 12063595), (170, 9650876), (212, 7738910), (265, 6191128), (340, 4825438), (424, 3869455), (530, 3095564), (680, 2412719), (901, 1820920), (1060, 1547782), (1802, 910460), (2120, 773891), (3604, 455230), (4505, 364184), (7208, 227615), (9010, 182092), (18020, 91046), (36040, 45523)]