30027320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 39827080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 97, 109, 142, 194, 218, 284, 355, 388, 436, 485, 545, 568, 710, 776, 872, 970, 1090, 1420, 1940, 2180, 2840, 3880, 4360, 6887, 7739, 10573, 13774, 15478, 21146, 27548, 30956, 34435, 38695, 42292, 52865, 55096, 61912, 68870, 77390, 84584, 105730, 137740, 154780, 211460, 275480, 309560, 422920, 750683, 1501366, 3002732, 3753415, 6005464, 7506830, 15013660, 30027320]

約数ペア:

[(1, 30027320), (2, 15013660), (4, 7506830), (5, 6005464), (8, 3753415), (10, 3002732), (20, 1501366), (40, 750683), (71, 422920), (97, 309560), (109, 275480), (142, 211460), (194, 154780), (218, 137740), (284, 105730), (355, 84584), (388, 77390), (436, 68870), (485, 61912), (545, 55096), (568, 52865), (710, 42292), (776, 38695), (872, 34435), (970, 30956), (1090, 27548), (1420, 21146), (1940, 15478), (2180, 13774), (2840, 10573), (3880, 7739), (4360, 6887)]