80381240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 186170400

約数和(自身を除く): 105789160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 89, 134, 178, 268, 335, 337, 356, 445, 536, 670, 674, 712, 890, 1340, 1348, 1685, 1780, 2680, 2696, 3370, 3560, 5963, 6740, 11926, 13480, 22579, 23852, 29815, 29993, 45158, 47704, 59630, 59986, 90316, 112895, 119260, 119972, 149965, 180632, 225790, 238520, 239944, 299930, 451580, 599860, 903160, 1199720, 2009531, 4019062, 8038124, 10047655, 16076248, 20095310, 40190620, 80381240]

約数ペア:

[(1, 80381240), (2, 40190620), (4, 20095310), (5, 16076248), (8, 10047655), (10, 8038124), (20, 4019062), (40, 2009531), (67, 1199720), (89, 903160), (134, 599860), (178, 451580), (268, 299930), (335, 239944), (337, 238520), (356, 225790), (445, 180632), (536, 149965), (670, 119972), (674, 119260), (712, 112895), (890, 90316), (1340, 59986), (1348, 59630), (1685, 47704), (1780, 45158), (2680, 29993), (2696, 29815), (3370, 23852), (3560, 22579), (5963, 13480), (6740, 11926)]