8680760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 21621600

約数和(自身を除く): 12940840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 181, 218, 220, 362, 436, 440, 545, 724, 872, 905, 1090, 1199, 1448, 1810, 1991, 2180, 2398, 3620, 3982, 4360, 4796, 5995, 7240, 7964, 9592, 9955, 11990, 15928, 19729, 19910, 23980, 39458, 39820, 47960, 78916, 79640, 98645, 157832, 197290, 217019, 394580, 434038, 789160, 868076, 1085095, 1736152, 2170190, 4340380, 8680760]

約数ペア:

[(1, 8680760), (2, 4340380), (4, 2170190), (5, 1736152), (8, 1085095), (10, 868076), (11, 789160), (20, 434038), (22, 394580), (40, 217019), (44, 197290), (55, 157832), (88, 98645), (109, 79640), (110, 78916), (181, 47960), (218, 39820), (220, 39458), (362, 23980), (436, 19910), (440, 19729), (545, 15928), (724, 11990), (872, 9955), (905, 9592), (1090, 7964), (1199, 7240), (1448, 5995), (1810, 4796), (1991, 4360), (2180, 3982), (2398, 3620)]