1778098360

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{4801}}^1$

素因数の和:5056

約数の個数: 64

約数和(自身を含む): 4107438720

約数和(自身を除く): 2329340360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 197, 235, 376, 394, 470, 788, 940, 985, 1576, 1880, 1970, 3940, 4801, 7880, 9259, 9602, 18518, 19204, 24005, 37036, 38408, 46295, 48010, 74072, 92590, 96020, 185180, 192040, 225647, 370360, 451294, 902588, 945797, 1128235, 1805176, 1891594, 2256470, 3783188, 4512940, 4728985, 7566376, 9025880, 9457970, 18915940, 37831880, 44452459, 88904918, 177809836, 222262295, 355619672, 444524590, 889049180, 1778098360]

約数ペア:

[(1, 1778098360), (2, 889049180), (4, 444524590), (5, 355619672), (8, 222262295), (10, 177809836), (20, 88904918), (40, 44452459), (47, 37831880), (94, 18915940), (188, 9457970), (197, 9025880), (235, 7566376), (376, 4728985), (394, 4512940), (470, 3783188), (788, 2256470), (940, 1891594), (985, 1805176), (1576, 1128235), (1880, 945797), (1970, 902588), (3940, 451294), (4801, 370360), (7880, 225647), (9259, 192040), (9602, 185180), (18518, 96020), (19204, 92590), (24005, 74072), (37036, 48010), (38408, 46295)]