213781820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25033}}^1$

素因数の和:25110

約数の個数: 48

約数和(自身を含む): 521508288

約数和(自身を除く): 307726468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 25033, 50066, 100132, 125165, 175231, 250330, 350462, 500660, 700924, 876155, 1527013, 1752310, 3054026, 3504620, 6108052, 7635065, 10689091, 15270130, 21378182, 30540260, 42756364, 53445455, 106890910, 213781820]

約数ペア:

[(1, 213781820), (2, 106890910), (4, 53445455), (5, 42756364), (7, 30540260), (10, 21378182), (14, 15270130), (20, 10689091), (28, 7635065), (35, 6108052), (61, 3504620), (70, 3054026), (122, 1752310), (140, 1527013), (244, 876155), (305, 700924), (427, 500660), (610, 350462), (854, 250330), (1220, 175231), (1708, 125165), (2135, 100132), (4270, 50066), (8540, 25033)]