26661980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 57679776

約数和(自身を除く): 31017796

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 197, 202, 268, 335, 394, 404, 505, 670, 788, 985, 1010, 1340, 1970, 2020, 3940, 6767, 13199, 13534, 19897, 26398, 27068, 33835, 39794, 52796, 65995, 67670, 79588, 99485, 131990, 135340, 198970, 263980, 397940, 1333099, 2666198, 5332396, 6665495, 13330990, 26661980]

約数ペア:

[(1, 26661980), (2, 13330990), (4, 6665495), (5, 5332396), (10, 2666198), (20, 1333099), (67, 397940), (101, 263980), (134, 198970), (197, 135340), (202, 131990), (268, 99485), (335, 79588), (394, 67670), (404, 65995), (505, 52796), (670, 39794), (788, 33835), (985, 27068), (1010, 26398), (1340, 19897), (1970, 13534), (2020, 13199), (3940, 6767)]