20859104

素因数分解:

$2^5\times 7^2\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:328

約数の個数: 72

約数和(自身を含む): 48866328

約数和(自身を除く): 28007224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 53, 56, 98, 106, 112, 196, 212, 224, 251, 371, 392, 424, 502, 742, 784, 848, 1004, 1484, 1568, 1696, 1757, 2008, 2597, 2968, 3514, 4016, 5194, 5936, 7028, 8032, 10388, 11872, 12299, 13303, 14056, 20776, 24598, 26606, 28112, 41552, 49196, 53212, 56224, 83104, 93121, 98392, 106424, 186242, 196784, 212848, 372484, 393568, 425696, 651847, 744968, 1303694, 1489936, 2607388, 2979872, 5214776, 10429552, 20859104]

約数ペア:

[(1, 20859104), (2, 10429552), (4, 5214776), (7, 2979872), (8, 2607388), (14, 1489936), (16, 1303694), (28, 744968), (32, 651847), (49, 425696), (53, 393568), (56, 372484), (98, 212848), (106, 196784), (112, 186242), (196, 106424), (212, 98392), (224, 93121), (251, 83104), (371, 56224), (392, 53212), (424, 49196), (502, 41552), (742, 28112), (784, 26606), (848, 24598), (1004, 20776), (1484, 14056), (1568, 13303), (1696, 12299), (1757, 11872), (2008, 10388), (2597, 8032), (2968, 7028), (3514, 5936), (4016, 5194)]