278327751

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 430901856

約数和(自身を除く): 152574105

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 361, 373, 689, 741, 1007, 1083, 1119, 2067, 3021, 4693, 4849, 7087, 13091, 14079, 14547, 19133, 19769, 21261, 39273, 57399, 59307, 92131, 134653, 248729, 256997, 276393, 375611, 403959, 746187, 770991, 1126833, 1750489, 4882943, 5251467, 7136609, 14648829, 21409827, 92775917, 278327751]

約数ペア:

[(1, 278327751), (3, 92775917), (13, 21409827), (19, 14648829), (39, 7136609), (53, 5251467), (57, 4882943), (159, 1750489), (247, 1126833), (361, 770991), (373, 746187), (689, 403959), (741, 375611), (1007, 276393), (1083, 256997), (1119, 248729), (2067, 134653), (3021, 92131), (4693, 59307), (4849, 57399), (7087, 39273), (13091, 21261), (14079, 19769), (14547, 19133)]