81690970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{6551}}^1$

素因数の和:6630

約数の個数: 32

約数和(自身を含む): 155675520

約数和(自身を除く): 73984550

約数列:

[1, 2, 5, 10, 29, 43, 58, 86, 145, 215, 290, 430, 1247, 2494, 6235, 6551, 12470, 13102, 32755, 65510, 189979, 281693, 379958, 563386, 949895, 1408465, 1899790, 2816930, 8169097, 16338194, 40845485, 81690970]

約数ペア:

[(1, 81690970), (2, 40845485), (5, 16338194), (10, 8169097), (29, 2816930), (43, 1899790), (58, 1408465), (86, 949895), (145, 563386), (215, 379958), (290, 281693), (430, 189979), (1247, 65510), (2494, 32755), (6235, 13102), (6551, 12470)]