31454380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 68584320

約数和(自身を除く): 37129940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 431, 445, 820, 862, 890, 1724, 1780, 2155, 3649, 4310, 7298, 8620, 14596, 17671, 18245, 35342, 36490, 38359, 70684, 72980, 76718, 88355, 153436, 176710, 191795, 353420, 383590, 767180, 1572719, 3145438, 6290876, 7863595, 15727190, 31454380]

約数ペア:

[(1, 31454380), (2, 15727190), (4, 7863595), (5, 6290876), (10, 3145438), (20, 1572719), (41, 767180), (82, 383590), (89, 353420), (164, 191795), (178, 176710), (205, 153436), (356, 88355), (410, 76718), (431, 72980), (445, 70684), (820, 38359), (862, 36490), (890, 35342), (1724, 18245), (1780, 17671), (2155, 14596), (3649, 8620), (4310, 7298)]