289300280

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{31583}}^1$

素因数の和:31823

約数の個数: 32

約数和(自身を含む): 653788800

約数和(自身を除く): 364488520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 31583, 63166, 126332, 157915, 252664, 315830, 631660, 1263320, 7232507, 14465014, 28930028, 36162535, 57860056, 72325070, 144650140, 289300280]

約数ペア:

[(1, 289300280), (2, 144650140), (4, 72325070), (5, 57860056), (8, 36162535), (10, 28930028), (20, 14465014), (40, 7232507), (229, 1263320), (458, 631660), (916, 315830), (1145, 252664), (1832, 157915), (2290, 126332), (4580, 63166), (9160, 31583)]