78605620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4919}}^1$

素因数の和:4992

約数の個数: 48

約数和(自身を含む): 178536960

約数和(自身を除く): 99931340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 4919, 7990, 9838, 15980, 19676, 24595, 49190, 83623, 98380, 167246, 231193, 334492, 418115, 462386, 836230, 924772, 1155965, 1672460, 2311930, 3930281, 4623860, 7860562, 15721124, 19651405, 39302810, 78605620]

約数ペア:

[(1, 78605620), (2, 39302810), (4, 19651405), (5, 15721124), (10, 7860562), (17, 4623860), (20, 3930281), (34, 2311930), (47, 1672460), (68, 1155965), (85, 924772), (94, 836230), (170, 462386), (188, 418115), (235, 334492), (340, 231193), (470, 167246), (799, 98380), (940, 83623), (1598, 49190), (3196, 24595), (3995, 19676), (4919, 15980), (7990, 9838)]