81124568

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:540

約数の個数: 64

約数和(自身を含む): 180532800

約数和(自身を除く): 99408232

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 89, 164, 178, 287, 328, 356, 397, 574, 623, 712, 794, 1148, 1246, 1588, 2296, 2492, 2779, 3176, 3649, 4984, 5558, 7298, 11116, 14596, 16277, 22232, 25543, 29192, 32554, 35333, 51086, 65108, 70666, 102172, 113939, 130216, 141332, 204344, 227878, 247331, 282664, 455756, 494662, 911512, 989324, 1448653, 1978648, 2897306, 5794612, 10140571, 11589224, 20281142, 40562284, 81124568]

約数ペア:

[(1, 81124568), (2, 40562284), (4, 20281142), (7, 11589224), (8, 10140571), (14, 5794612), (28, 2897306), (41, 1978648), (56, 1448653), (82, 989324), (89, 911512), (164, 494662), (178, 455756), (287, 282664), (328, 247331), (356, 227878), (397, 204344), (574, 141332), (623, 130216), (712, 113939), (794, 102172), (1148, 70666), (1246, 65108), (1588, 51086), (2296, 35333), (2492, 32554), (2779, 29192), (3176, 25543), (3649, 22232), (4984, 16277), (5558, 14596), (7298, 11116)]