20354516

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 44217600

約数和(自身を除く): 23863084

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 199, 281, 364, 398, 562, 796, 1124, 1393, 1967, 2587, 2786, 3653, 3934, 5174, 5572, 7306, 7868, 10348, 14612, 18109, 25571, 36218, 51142, 55919, 72436, 102284, 111838, 223676, 391433, 726947, 782866, 1453894, 1565732, 2907788, 5088629, 10177258, 20354516]

約数ペア:

[(1, 20354516), (2, 10177258), (4, 5088629), (7, 2907788), (13, 1565732), (14, 1453894), (26, 782866), (28, 726947), (52, 391433), (91, 223676), (182, 111838), (199, 102284), (281, 72436), (364, 55919), (398, 51142), (562, 36218), (796, 25571), (1124, 18109), (1393, 14612), (1967, 10348), (2587, 7868), (2786, 7306), (3653, 5572), (3934, 5174)]