81485690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{56983}}^1$

素因数の和:57014

約数の個数: 32

約数和(自身を含む): 172319616

約数和(自身を除く): 90833926

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 56983, 113966, 284915, 569830, 626813, 740779, 1253626, 1481558, 3134065, 3703895, 6268130, 7407790, 8148569, 16297138, 40742845, 81485690]

約数ペア:

[(1, 81485690), (2, 40742845), (5, 16297138), (10, 8148569), (11, 7407790), (13, 6268130), (22, 3703895), (26, 3134065), (55, 1481558), (65, 1253626), (110, 740779), (130, 626813), (143, 569830), (286, 284915), (715, 113966), (1430, 56983)]