808963820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251231}}^1$

素因数の和:251270

約数の個数: 48

約数和(自身を含む): 2025934848

約数和(自身を除く): 1216971028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 251231, 502462, 1004924, 1256155, 1758617, 2512310, 3517234, 5024620, 5778313, 7034468, 8793085, 11556626, 17586170, 23113252, 28891565, 35172340, 40448191, 57783130, 80896382, 115566260, 161792764, 202240955, 404481910, 808963820]

約数ペア:

[(1, 808963820), (2, 404481910), (4, 202240955), (5, 161792764), (7, 115566260), (10, 80896382), (14, 57783130), (20, 40448191), (23, 35172340), (28, 28891565), (35, 23113252), (46, 17586170), (70, 11556626), (92, 8793085), (115, 7034468), (140, 5778313), (161, 5024620), (230, 3517234), (322, 2512310), (460, 1758617), (644, 1256155), (805, 1004924), (1610, 502462), (3220, 251231)]