68946520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 159213600

約数和(自身を除く): 90267080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 107, 178, 181, 214, 356, 362, 428, 445, 535, 712, 724, 856, 890, 905, 1070, 1448, 1780, 1810, 2140, 3560, 3620, 4280, 7240, 9523, 16109, 19046, 19367, 32218, 38092, 38734, 47615, 64436, 76184, 77468, 80545, 95230, 96835, 128872, 154936, 161090, 190460, 193670, 322180, 380920, 387340, 644360, 774680, 1723663, 3447326, 6894652, 8618315, 13789304, 17236630, 34473260, 68946520]

約数ペア:

[(1, 68946520), (2, 34473260), (4, 17236630), (5, 13789304), (8, 8618315), (10, 6894652), (20, 3447326), (40, 1723663), (89, 774680), (107, 644360), (178, 387340), (181, 380920), (214, 322180), (356, 193670), (362, 190460), (428, 161090), (445, 154936), (535, 128872), (712, 96835), (724, 95230), (856, 80545), (890, 77468), (905, 76184), (1070, 64436), (1448, 47615), (1780, 38734), (1810, 38092), (2140, 32218), (3560, 19367), (3620, 19046), (4280, 16109), (7240, 9523)]