78165080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2131}}^1$

素因数の和:2280

約数の個数: 64

約数和(自身を含む): 202625280

約数和(自身を除く): 124460200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1834, 2131, 2620, 3668, 4262, 4585, 5240, 7336, 8524, 9170, 10655, 14917, 17048, 18340, 21310, 29834, 36680, 42620, 59668, 74585, 85240, 119336, 149170, 279161, 298340, 558322, 596680, 1116644, 1395805, 1954127, 2233288, 2791610, 3908254, 5583220, 7816508, 9770635, 11166440, 15633016, 19541270, 39082540, 78165080]

約数ペア:

[(1, 78165080), (2, 39082540), (4, 19541270), (5, 15633016), (7, 11166440), (8, 9770635), (10, 7816508), (14, 5583220), (20, 3908254), (28, 2791610), (35, 2233288), (40, 1954127), (56, 1395805), (70, 1116644), (131, 596680), (140, 558322), (262, 298340), (280, 279161), (524, 149170), (655, 119336), (917, 85240), (1048, 74585), (1310, 59668), (1834, 42620), (2131, 36680), (2620, 29834), (3668, 21310), (4262, 18340), (4585, 17048), (5240, 14917), (7336, 10655), (8524, 9170)]