1639403890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1489}}^1\times {\mathrm{4787}}^1$

素因数の和:6306

約数の個数: 32

約数和(自身を含む): 3081939840

約数和(自身を除く): 1442535950

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 1489, 2978, 4787, 7445, 9574, 14890, 23935, 34247, 47870, 68494, 110101, 171235, 220202, 342470, 550505, 1101010, 7127843, 14255686, 35639215, 71278430, 163940389, 327880778, 819701945, 1639403890]

約数ペア:

[(1, 1639403890), (2, 819701945), (5, 327880778), (10, 163940389), (23, 71278430), (46, 35639215), (115, 14255686), (230, 7127843), (1489, 1101010), (2978, 550505), (4787, 342470), (7445, 220202), (9574, 171235), (14890, 110101), (23935, 68494), (34247, 47870)]