720179908

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{1459}}^1$

素因数の和:1565

約数の個数: 72

約数和(自身を含む): 1556219840

約数和(自身を除く): 836039932

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 289, 427, 476, 578, 854, 1037, 1156, 1459, 1708, 2023, 2074, 2918, 4046, 4148, 5836, 7259, 8092, 10213, 14518, 17629, 20426, 24803, 29036, 35258, 40852, 49606, 70516, 88999, 99212, 123403, 173621, 177998, 246806, 347242, 355996, 421651, 493612, 622993, 694484, 843302, 1245986, 1512983, 1686604, 2491972, 2951557, 3025966, 5903114, 6051932, 10590881, 11806228, 21181762, 25720711, 42363524, 51441422, 102882844, 180044977, 360089954, 720179908]

約数ペア:

[(1, 720179908), (2, 360089954), (4, 180044977), (7, 102882844), (14, 51441422), (17, 42363524), (28, 25720711), (34, 21181762), (61, 11806228), (68, 10590881), (119, 6051932), (122, 5903114), (238, 3025966), (244, 2951557), (289, 2491972), (427, 1686604), (476, 1512983), (578, 1245986), (854, 843302), (1037, 694484), (1156, 622993), (1459, 493612), (1708, 421651), (2023, 355996), (2074, 347242), (2918, 246806), (4046, 177998), (4148, 173621), (5836, 123403), (7259, 99212), (8092, 88999), (10213, 70516), (14518, 49606), (17629, 40852), (20426, 35258), (24803, 29036)]