20201142

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 47013120

約数和(自身を除く): 26811978

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 43, 57, 78, 86, 114, 129, 247, 258, 317, 494, 559, 634, 741, 817, 951, 1118, 1482, 1634, 1677, 1902, 2451, 3354, 4121, 4902, 6023, 8242, 10621, 12046, 12363, 13631, 18069, 21242, 24726, 27262, 31863, 36138, 40893, 63726, 78299, 81786, 156598, 177203, 234897, 258989, 354406, 469794, 517978, 531609, 776967, 1063218, 1553934, 3366857, 6733714, 10100571, 20201142]

約数ペア:

[(1, 20201142), (2, 10100571), (3, 6733714), (6, 3366857), (13, 1553934), (19, 1063218), (26, 776967), (38, 531609), (39, 517978), (43, 469794), (57, 354406), (78, 258989), (86, 234897), (114, 177203), (129, 156598), (247, 81786), (258, 78299), (317, 63726), (494, 40893), (559, 36138), (634, 31863), (741, 27262), (817, 24726), (951, 21242), (1118, 18069), (1482, 13631), (1634, 12363), (1677, 12046), (1902, 10621), (2451, 8242), (3354, 6023), (4121, 4902)]