258412720

素因数分解:

$2^4\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{2339}}^1$

素因数の和:3733

約数の個数: 40

約数和(自身を含む): 601501680

約数和(自身を除く): 343088960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1381, 2339, 2762, 4678, 5524, 6905, 9356, 11048, 11695, 13810, 18712, 22096, 23390, 27620, 37424, 46780, 55240, 93560, 110480, 187120, 3230159, 6460318, 12920636, 16150795, 25841272, 32301590, 51682544, 64603180, 129206360, 258412720]

約数ペア:

[(1, 258412720), (2, 129206360), (4, 64603180), (5, 51682544), (8, 32301590), (10, 25841272), (16, 16150795), (20, 12920636), (40, 6460318), (80, 3230159), (1381, 187120), (2339, 110480), (2762, 93560), (4678, 55240), (5524, 46780), (6905, 37424), (9356, 27620), (11048, 23390), (11695, 22096), (13810, 18712)]