20790865908

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{599}}^1\times {\mathrm{2237}}^1$

素因数の和:3277

約数の個数: 72

約数和(自身を含む): 52788153600

約数和(自身を除く): 31997287692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 599, 862, 1198, 1293, 1724, 1797, 2237, 2396, 2586, 3594, 3879, 4474, 5172, 5391, 6711, 7188, 7758, 8948, 10782, 13422, 15516, 20133, 21564, 26844, 40266, 80532, 258169, 516338, 774507, 964147, 1032676, 1339963, 1549014, 1928294, 2323521, 2679926, 2892441, 3098028, 3856588, 4019889, 4647042, 5359852, 5784882, 8039778, 8677323, 9294084, 11569764, 12059667, 16079556, 17354646, 24119334, 34709292, 48238668, 577524053, 1155048106, 1732572159, 2310096212, 3465144318, 5197716477, 6930288636, 10395432954, 20790865908]

約数ペア:

[(1, 20790865908), (2, 10395432954), (3, 6930288636), (4, 5197716477), (6, 3465144318), (9, 2310096212), (12, 1732572159), (18, 1155048106), (36, 577524053), (431, 48238668), (599, 34709292), (862, 24119334), (1198, 17354646), (1293, 16079556), (1724, 12059667), (1797, 11569764), (2237, 9294084), (2396, 8677323), (2586, 8039778), (3594, 5784882), (3879, 5359852), (4474, 4647042), (5172, 4019889), (5391, 3856588), (6711, 3098028), (7188, 2892441), (7758, 2679926), (8948, 2323521), (10782, 1928294), (13422, 1549014), (15516, 1339963), (20133, 1032676), (21564, 964147), (26844, 774507), (40266, 516338), (80532, 258169)]