840147154

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:823

約数の個数: 64

約数和(自身を含む): 1618735104

約数和(自身を除く): 778587950

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 271, 287, 451, 491, 542, 574, 902, 982, 1897, 2981, 3157, 3437, 3794, 5401, 5962, 6314, 6874, 10802, 11111, 20131, 20867, 22222, 37807, 40262, 41734, 75614, 77777, 122221, 133061, 140917, 155554, 221441, 244442, 266122, 281834, 442882, 855547, 931427, 1463671, 1550087, 1711094, 1862854, 2927342, 3100174, 5455501, 10245697, 10911002, 20491394, 38188507, 60010511, 76377014, 120021022, 420073577, 840147154]

約数ペア:

[(1, 840147154), (2, 420073577), (7, 120021022), (11, 76377014), (14, 60010511), (22, 38188507), (41, 20491394), (77, 10911002), (82, 10245697), (154, 5455501), (271, 3100174), (287, 2927342), (451, 1862854), (491, 1711094), (542, 1550087), (574, 1463671), (902, 931427), (982, 855547), (1897, 442882), (2981, 281834), (3157, 266122), (3437, 244442), (3794, 221441), (5401, 155554), (5962, 140917), (6314, 133061), (6874, 122221), (10802, 77777), (11111, 75614), (20131, 41734), (20867, 40262), (22222, 37807)]