19105120

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1231}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 45638208

約数和(自身を除く): 26533088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1231, 1552, 1940, 2462, 3104, 3880, 4924, 6155, 7760, 9848, 12310, 15520, 19696, 24620, 39392, 49240, 98480, 119407, 196960, 238814, 477628, 597035, 955256, 1194070, 1910512, 2388140, 3821024, 4776280, 9552560, 19105120]

約数ペア:

[(1, 19105120), (2, 9552560), (4, 4776280), (5, 3821024), (8, 2388140), (10, 1910512), (16, 1194070), (20, 955256), (32, 597035), (40, 477628), (80, 238814), (97, 196960), (160, 119407), (194, 98480), (388, 49240), (485, 39392), (776, 24620), (970, 19696), (1231, 15520), (1552, 12310), (1940, 9848), (2462, 7760), (3104, 6155), (3880, 4924)]