197589420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{156817}}^1$

素因数の和:156839

約数の個数: 72

約数和(自身を含む): 684981024

約数和(自身を除く): 487391604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 156817, 313634, 470451, 627268, 784085, 940902, 1097719, 1411353, 1568170, 1881804, 2195438, 2352255, 2822706, 3136340, 3293157, 4390876, 4704510, 5488595, 5645412, 6586314, 7056765, 9409020, 9879471, 10977190, 13172628, 14113530, 16465785, 19758942, 21954380, 28227060, 32931570, 39517884, 49397355, 65863140, 98794710, 197589420]

約数ペア:

[(1, 197589420), (2, 98794710), (3, 65863140), (4, 49397355), (5, 39517884), (6, 32931570), (7, 28227060), (9, 21954380), (10, 19758942), (12, 16465785), (14, 14113530), (15, 13172628), (18, 10977190), (20, 9879471), (21, 9409020), (28, 7056765), (30, 6586314), (35, 5645412), (36, 5488595), (42, 4704510), (45, 4390876), (60, 3293157), (63, 3136340), (70, 2822706), (84, 2352255), (90, 2195438), (105, 1881804), (126, 1568170), (140, 1411353), (180, 1097719), (210, 940902), (252, 784085), (315, 627268), (420, 470451), (630, 313634), (1260, 156817)]