81909240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97511}}^1$

素因数の和:97532

約数の個数: 64

約数和(自身を含む): 280834560

約数和(自身を除く): 198925320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97511, 195022, 292533, 390044, 487555, 585066, 682577, 780088, 975110, 1170132, 1365154, 1462665, 1950220, 2047731, 2340264, 2730308, 2925330, 3412885, 3900440, 4095462, 5460616, 5850660, 6825770, 8190924, 10238655, 11701320, 13651540, 16381848, 20477310, 27303080, 40954620, 81909240]

約数ペア:

[(1, 81909240), (2, 40954620), (3, 27303080), (4, 20477310), (5, 16381848), (6, 13651540), (7, 11701320), (8, 10238655), (10, 8190924), (12, 6825770), (14, 5850660), (15, 5460616), (20, 4095462), (21, 3900440), (24, 3412885), (28, 2925330), (30, 2730308), (35, 2340264), (40, 2047731), (42, 1950220), (56, 1462665), (60, 1365154), (70, 1170132), (84, 975110), (105, 780088), (120, 682577), (140, 585066), (168, 487555), (210, 390044), (280, 292533), (420, 195022), (840, 97511)]