20405430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11933}}^1$

素因数の和:11965

約数の個数: 48

約数和(自身を含む): 55851120

約数和(自身を除く): 35445690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 11933, 23866, 35799, 59665, 71598, 107397, 119330, 178995, 214794, 226727, 357990, 453454, 536985, 680181, 1073970, 1133635, 1360362, 2040543, 2267270, 3400905, 4081086, 6801810, 10202715, 20405430]

約数ペア:

[(1, 20405430), (2, 10202715), (3, 6801810), (5, 4081086), (6, 3400905), (9, 2267270), (10, 2040543), (15, 1360362), (18, 1133635), (19, 1073970), (30, 680181), (38, 536985), (45, 453454), (57, 357990), (90, 226727), (95, 214794), (114, 178995), (171, 119330), (190, 107397), (285, 71598), (342, 59665), (570, 35799), (855, 23866), (1710, 11933)]