278322850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1213}}^1$

素因数の和:1591

約数の個数: 48

約数和(自身を含む): 559542312

約数和(自身を除く): 281219462

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 353, 650, 706, 1213, 1765, 2426, 3530, 4589, 6065, 8825, 9178, 12130, 15769, 17650, 22945, 30325, 31538, 45890, 60650, 78845, 114725, 157690, 229450, 394225, 428189, 788450, 856378, 2140945, 4281890, 5566457, 10704725, 11132914, 21409450, 27832285, 55664570, 139161425, 278322850]

約数ペア:

[(1, 278322850), (2, 139161425), (5, 55664570), (10, 27832285), (13, 21409450), (25, 11132914), (26, 10704725), (50, 5566457), (65, 4281890), (130, 2140945), (325, 856378), (353, 788450), (650, 428189), (706, 394225), (1213, 229450), (1765, 157690), (2426, 114725), (3530, 78845), (4589, 60650), (6065, 45890), (8825, 31538), (9178, 30325), (12130, 22945), (15769, 17650)]