639342892

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 1161216000

約数和(自身を除く): 521873108

約数列:

[1, 2, 4, 79, 89, 127, 158, 178, 179, 254, 316, 356, 358, 508, 716, 7031, 10033, 11303, 14062, 14141, 15931, 20066, 22606, 22733, 28124, 28282, 31862, 40132, 45212, 45466, 56564, 63724, 90932, 892937, 1258549, 1785874, 1795907, 2023237, 2517098, 3571748, 3591814, 4046474, 5034196, 7183628, 8092948, 159835723, 319671446, 639342892]

約数ペア:

[(1, 639342892), (2, 319671446), (4, 159835723), (79, 8092948), (89, 7183628), (127, 5034196), (158, 4046474), (178, 3591814), (179, 3571748), (254, 2517098), (316, 2023237), (356, 1795907), (358, 1785874), (508, 1258549), (716, 892937), (7031, 90932), (10033, 63724), (11303, 56564), (14062, 45466), (14141, 45212), (15931, 40132), (20066, 31862), (22606, 28282), (22733, 28124)]