16871240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 40608000

約数和(自身を除く): 23736760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 281, 316, 380, 395, 562, 632, 760, 790, 1124, 1405, 1501, 1580, 2248, 2810, 3002, 3160, 5339, 5620, 6004, 7505, 10678, 11240, 12008, 15010, 21356, 22199, 26695, 30020, 42712, 44398, 53390, 60040, 88796, 106780, 110995, 177592, 213560, 221990, 421781, 443980, 843562, 887960, 1687124, 2108905, 3374248, 4217810, 8435620, 16871240]

約数ペア:

[(1, 16871240), (2, 8435620), (4, 4217810), (5, 3374248), (8, 2108905), (10, 1687124), (19, 887960), (20, 843562), (38, 443980), (40, 421781), (76, 221990), (79, 213560), (95, 177592), (152, 110995), (158, 106780), (190, 88796), (281, 60040), (316, 53390), (380, 44398), (395, 42712), (562, 30020), (632, 26695), (760, 22199), (790, 21356), (1124, 15010), (1405, 12008), (1501, 11240), (1580, 10678), (2248, 7505), (2810, 6004), (3002, 5620), (3160, 5339)]