213822920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{55109}}^1$

素因数の和:55217

約数の個数: 32

約数和(自身を含む): 486070200

約数和(自身を除く): 272247280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 55109, 110218, 220436, 275545, 440872, 551090, 1102180, 2204360, 5345573, 10691146, 21382292, 26727865, 42764584, 53455730, 106911460, 213822920]

約数ペア:

[(1, 213822920), (2, 106911460), (4, 53455730), (5, 42764584), (8, 26727865), (10, 21382292), (20, 10691146), (40, 5345573), (97, 2204360), (194, 1102180), (388, 551090), (485, 440872), (776, 275545), (970, 220436), (1940, 110218), (3880, 55109)]