19213980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{743}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 53996544

約数和(自身を除く): 34782564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 743, 862, 1293, 1486, 1724, 2155, 2229, 2586, 2972, 3715, 4310, 4458, 5172, 6465, 7430, 8620, 8916, 11145, 12930, 14860, 22290, 25860, 44580, 320233, 640466, 960699, 1280932, 1601165, 1921398, 3202330, 3842796, 4803495, 6404660, 9606990, 19213980]

約数ペア:

[(1, 19213980), (2, 9606990), (3, 6404660), (4, 4803495), (5, 3842796), (6, 3202330), (10, 1921398), (12, 1601165), (15, 1280932), (20, 960699), (30, 640466), (60, 320233), (431, 44580), (743, 25860), (862, 22290), (1293, 14860), (1486, 12930), (1724, 11145), (2155, 8916), (2229, 8620), (2586, 7430), (2972, 6465), (3715, 5172), (4310, 4458)]