78319280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75307}}^1$

素因数の和:75333

約数の個数: 40

約数和(自身を含む): 196102032

約数和(自身を除く): 117782752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75307, 150614, 301228, 376535, 602456, 753070, 978991, 1204912, 1506140, 1957982, 3012280, 3915964, 4894955, 6024560, 7831928, 9789910, 15663856, 19579820, 39159640, 78319280]

約数ペア:

[(1, 78319280), (2, 39159640), (4, 19579820), (5, 15663856), (8, 9789910), (10, 7831928), (13, 6024560), (16, 4894955), (20, 3915964), (26, 3012280), (40, 1957982), (52, 1506140), (65, 1204912), (80, 978991), (104, 753070), (130, 602456), (208, 376535), (260, 301228), (520, 150614), (1040, 75307)]