1781413340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{44029}}^1$

素因数の和:44079

約数の個数: 72

約数和(自身を含む): 4541782560

約数和(自身を除く): 2760369220

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 2023, 2380, 2890, 4046, 5780, 8092, 10115, 20230, 40460, 44029, 88058, 176116, 220145, 308203, 440290, 616406, 748493, 880580, 1232812, 1496986, 1541015, 2993972, 3082030, 3742465, 5239451, 6164060, 7484930, 10478902, 12724381, 14969860, 20957804, 25448762, 26197255, 50897524, 52394510, 63621905, 89070667, 104789020, 127243810, 178141334, 254487620, 356282668, 445353335, 890706670, 1781413340]

約数ペア:

[(1, 1781413340), (2, 890706670), (4, 445353335), (5, 356282668), (7, 254487620), (10, 178141334), (14, 127243810), (17, 104789020), (20, 89070667), (28, 63621905), (34, 52394510), (35, 50897524), (68, 26197255), (70, 25448762), (85, 20957804), (119, 14969860), (140, 12724381), (170, 10478902), (238, 7484930), (289, 6164060), (340, 5239451), (476, 3742465), (578, 3082030), (595, 2993972), (1156, 1541015), (1190, 1496986), (1445, 1232812), (2023, 880580), (2380, 748493), (2890, 616406), (4046, 440290), (5780, 308203), (8092, 220145), (10115, 176116), (20230, 88058), (40460, 44029)]