19807668890

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1709}}^1\times {\mathrm{15877}}^1$

素因数の和:17666

約数の個数: 32

約数和(自身を含む): 36165638160

約数和(自身を除く): 16357969270

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 1709, 3418, 8545, 15877, 17090, 31754, 79385, 124757, 158770, 249514, 623785, 1159021, 1247570, 2318042, 5795105, 11590210, 27133793, 54267586, 135668965, 271337930, 1980766889, 3961533778, 9903834445, 19807668890]

約数ペア:

[(1, 19807668890), (2, 9903834445), (5, 3961533778), (10, 1980766889), (73, 271337930), (146, 135668965), (365, 54267586), (730, 27133793), (1709, 11590210), (3418, 5795105), (8545, 2318042), (15877, 1247570), (17090, 1159021), (31754, 623785), (79385, 249514), (124757, 158770)]