78173840

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13763}}^1$

素因数の和:13847

約数の個数: 40

約数和(自身を含む): 184327488

約数和(自身を除く): 106153648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13763, 27526, 55052, 68815, 110104, 137630, 220208, 275260, 550520, 977173, 1101040, 1954346, 3908692, 4885865, 7817384, 9771730, 15634768, 19543460, 39086920, 78173840]

約数ペア:

[(1, 78173840), (2, 39086920), (4, 19543460), (5, 15634768), (8, 9771730), (10, 7817384), (16, 4885865), (20, 3908692), (40, 1954346), (71, 1101040), (80, 977173), (142, 550520), (284, 275260), (355, 220208), (568, 137630), (710, 110104), (1136, 68815), (1420, 55052), (2840, 27526), (5680, 13763)]