28658786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 48384000

約数和(自身を除く): 19725214

約数列:

[1, 2, 13, 26, 29, 58, 191, 199, 377, 382, 398, 754, 2483, 2587, 4966, 5174, 5539, 5771, 11078, 11542, 38009, 72007, 75023, 76018, 144014, 150046, 494117, 988234, 1102261, 2204522, 14329393, 28658786]

約数ペア:

[(1, 28658786), (2, 14329393), (13, 2204522), (26, 1102261), (29, 988234), (58, 494117), (191, 150046), (199, 144014), (377, 76018), (382, 75023), (398, 72007), (754, 38009), (2483, 11542), (2587, 11078), (4966, 5771), (5174, 5539)]