80984265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 142331904

約数和(自身を除く): 61347639

約数列:

[1, 3, 5, 15, 23, 43, 53, 69, 103, 115, 129, 159, 215, 265, 309, 345, 515, 645, 795, 989, 1219, 1545, 2279, 2369, 2967, 3657, 4429, 4945, 5459, 6095, 6837, 7107, 11395, 11845, 13287, 14835, 16377, 18285, 22145, 27295, 34185, 35535, 52417, 66435, 81885, 101867, 125557, 157251, 234737, 262085, 305601, 376671, 509335, 627785, 704211, 786255, 1173685, 1528005, 1883355, 3521055, 5398951, 16196853, 26994755, 80984265]

約数ペア:

[(1, 80984265), (3, 26994755), (5, 16196853), (15, 5398951), (23, 3521055), (43, 1883355), (53, 1528005), (69, 1173685), (103, 786255), (115, 704211), (129, 627785), (159, 509335), (215, 376671), (265, 305601), (309, 262085), (345, 234737), (515, 157251), (645, 125557), (795, 101867), (989, 81885), (1219, 66435), (1545, 52417), (2279, 35535), (2369, 34185), (2967, 27295), (3657, 22145), (4429, 18285), (4945, 16377), (5459, 14835), (6095, 13287), (6837, 11845), (7107, 11395)]