25187890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 31421390

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 130, 178, 182, 311, 445, 455, 622, 623, 890, 910, 1157, 1246, 1555, 2177, 2314, 3110, 3115, 4043, 4354, 5785, 6230, 8086, 8099, 10885, 11570, 16198, 20215, 21770, 27679, 28301, 40430, 40495, 55358, 56602, 80990, 138395, 141505, 193753, 276790, 283010, 359827, 387506, 719654, 968765, 1799135, 1937530, 2518789, 3598270, 5037578, 12593945, 25187890]

約数ペア:

[(1, 25187890), (2, 12593945), (5, 5037578), (7, 3598270), (10, 2518789), (13, 1937530), (14, 1799135), (26, 968765), (35, 719654), (65, 387506), (70, 359827), (89, 283010), (91, 276790), (130, 193753), (178, 141505), (182, 138395), (311, 80990), (445, 56602), (455, 55358), (622, 40495), (623, 40430), (890, 28301), (910, 27679), (1157, 21770), (1246, 20215), (1555, 16198), (2177, 11570), (2314, 10885), (3110, 8099), (3115, 8086), (4043, 6230), (4354, 5785)]