21492720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29851}}^1$

素因数の和:29870

約数の個数: 60

約数和(自身を含む): 72182136

約数和(自身を除く): 50689416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29851, 59702, 89553, 119404, 149255, 179106, 238808, 268659, 298510, 358212, 447765, 477616, 537318, 597020, 716424, 895530, 1074636, 1194040, 1343295, 1432848, 1791060, 2149272, 2388080, 2686590, 3582120, 4298544, 5373180, 7164240, 10746360, 21492720]

約数ペア:

[(1, 21492720), (2, 10746360), (3, 7164240), (4, 5373180), (5, 4298544), (6, 3582120), (8, 2686590), (9, 2388080), (10, 2149272), (12, 1791060), (15, 1432848), (16, 1343295), (18, 1194040), (20, 1074636), (24, 895530), (30, 716424), (36, 597020), (40, 537318), (45, 477616), (48, 447765), (60, 358212), (72, 298510), (80, 268659), (90, 238808), (120, 179106), (144, 149255), (180, 119404), (240, 89553), (360, 59702), (720, 29851)]