78370490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 156280320

約数和(自身を除く): 77909830

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 239, 242, 271, 478, 542, 605, 1195, 1210, 1355, 2390, 2629, 2710, 2981, 5258, 5962, 13145, 14905, 26290, 28919, 29810, 32791, 57838, 64769, 65582, 129538, 144595, 163955, 289190, 323845, 327910, 647690, 712459, 1424918, 3562295, 7124590, 7837049, 15674098, 39185245, 78370490]

約数ペア:

[(1, 78370490), (2, 39185245), (5, 15674098), (10, 7837049), (11, 7124590), (22, 3562295), (55, 1424918), (110, 712459), (121, 647690), (239, 327910), (242, 323845), (271, 289190), (478, 163955), (542, 144595), (605, 129538), (1195, 65582), (1210, 64769), (1355, 57838), (2390, 32791), (2629, 29810), (2710, 28919), (2981, 26290), (5258, 14905), (5962, 13145)]