1900898020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{25667}}^1$

素因数の和:25729

約数の個数: 72

約数和(自身を含む): 4769319744

約数和(自身を除く): 2868421724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 529, 644, 805, 1058, 1610, 2116, 2645, 3220, 3703, 5290, 7406, 10580, 14812, 18515, 25667, 37030, 51334, 74060, 102668, 128335, 179669, 256670, 359338, 513340, 590341, 718676, 898345, 1180682, 1796690, 2361364, 2951705, 3593380, 4132387, 5903410, 8264774, 11806820, 13577843, 16529548, 20661935, 27155686, 41323870, 54311372, 67889215, 82647740, 95044901, 135778430, 190089802, 271556860, 380179604, 475224505, 950449010, 1900898020]

約数ペア:

[(1, 1900898020), (2, 950449010), (4, 475224505), (5, 380179604), (7, 271556860), (10, 190089802), (14, 135778430), (20, 95044901), (23, 82647740), (28, 67889215), (35, 54311372), (46, 41323870), (70, 27155686), (92, 20661935), (115, 16529548), (140, 13577843), (161, 11806820), (230, 8264774), (322, 5903410), (460, 4132387), (529, 3593380), (644, 2951705), (805, 2361364), (1058, 1796690), (1610, 1180682), (2116, 898345), (2645, 718676), (3220, 590341), (3703, 513340), (5290, 359338), (7406, 256670), (10580, 179669), (14812, 128335), (18515, 102668), (25667, 74060), (37030, 51334)]