31034920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{409}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 80294400

約数和(自身を除く): 49259480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 409, 542, 818, 1084, 1355, 1636, 1897, 2045, 2168, 2710, 2863, 3272, 3794, 4090, 5420, 5726, 7588, 8180, 9485, 10840, 11452, 14315, 15176, 16360, 18970, 22904, 28630, 37940, 57260, 75880, 110839, 114520, 221678, 443356, 554195, 775873, 886712, 1108390, 1551746, 2216780, 3103492, 3879365, 4433560, 6206984, 7758730, 15517460, 31034920]

約数ペア:

[(1, 31034920), (2, 15517460), (4, 7758730), (5, 6206984), (7, 4433560), (8, 3879365), (10, 3103492), (14, 2216780), (20, 1551746), (28, 1108390), (35, 886712), (40, 775873), (56, 554195), (70, 443356), (140, 221678), (271, 114520), (280, 110839), (409, 75880), (542, 57260), (818, 37940), (1084, 28630), (1355, 22904), (1636, 18970), (1897, 16360), (2045, 15176), (2168, 14315), (2710, 11452), (2863, 10840), (3272, 9485), (3794, 8180), (4090, 7588), (5420, 5726)]