7995440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5879}}^1$

素因数の和:5909

約数の個数: 40

約数和(自身を含む): 19686240

約数和(自身を除く): 11690800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 5879, 11758, 23516, 29395, 47032, 58790, 94064, 99943, 117580, 199886, 235160, 399772, 470320, 499715, 799544, 999430, 1599088, 1998860, 3997720, 7995440]

約数ペア:

[(1, 7995440), (2, 3997720), (4, 1998860), (5, 1599088), (8, 999430), (10, 799544), (16, 499715), (17, 470320), (20, 399772), (34, 235160), (40, 199886), (68, 117580), (80, 99943), (85, 94064), (136, 58790), (170, 47032), (272, 29395), (340, 23516), (680, 11758), (1360, 5879)]