81052020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{64327}}^1$

素因数の和:64349

約数の個数: 72

約数和(自身を含む): 280984704

約数和(自身を除く): 199932684

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, 64327, 128654, 192981, 257308, 321635, 385962, 450289, 578943, 643270, 771924, 900578, 964905, 1157886, 1286540, 1350867, 1801156, 1929810, 2251445, 2315772, 2701734, 2894715, 3859620, 4052601, 4502890, 5403468, 5789430, 6754335, 8105202, 9005780, 11578860, 13508670, 16210404, 20263005, 27017340, 40526010, 81052020]

約数ペア:

[(1, 81052020), (2, 40526010), (3, 27017340), (4, 20263005), (5, 16210404), (6, 13508670), (7, 11578860), (9, 9005780), (10, 8105202), (12, 6754335), (14, 5789430), (15, 5403468), (18, 4502890), (20, 4052601), (21, 3859620), (28, 2894715), (30, 2701734), (35, 2315772), (36, 2251445), (42, 1929810), (45, 1801156), (60, 1350867), (63, 1286540), (70, 1157886), (84, 964905), (90, 900578), (105, 771924), (126, 643270), (140, 578943), (180, 450289), (210, 385962), (252, 321635), (315, 257308), (420, 192981), (630, 128654), (1260, 64327)]