18195160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 43740000

約数和(自身を除く): 25544840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 269, 356, 380, 445, 538, 712, 760, 890, 1076, 1345, 1691, 1780, 2152, 2690, 3382, 3560, 5111, 5380, 6764, 8455, 10222, 10760, 13528, 16910, 20444, 23941, 25555, 33820, 40888, 47882, 51110, 67640, 95764, 102220, 119705, 191528, 204440, 239410, 454879, 478820, 909758, 957640, 1819516, 2274395, 3639032, 4548790, 9097580, 18195160]

約数ペア:

[(1, 18195160), (2, 9097580), (4, 4548790), (5, 3639032), (8, 2274395), (10, 1819516), (19, 957640), (20, 909758), (38, 478820), (40, 454879), (76, 239410), (89, 204440), (95, 191528), (152, 119705), (178, 102220), (190, 95764), (269, 67640), (356, 51110), (380, 47882), (445, 40888), (538, 33820), (712, 25555), (760, 23941), (890, 20444), (1076, 16910), (1345, 13528), (1691, 10760), (1780, 10222), (2152, 8455), (2690, 6764), (3382, 5380), (3560, 5111)]