20340774

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 28043226

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 31, 54, 58, 62, 87, 93, 174, 186, 261, 279, 419, 522, 558, 783, 837, 838, 899, 1257, 1566, 1674, 1798, 2514, 2697, 3771, 5394, 7542, 8091, 11313, 12151, 12989, 16182, 22626, 24273, 24302, 25978, 36453, 38967, 48546, 72906, 77934, 109359, 116901, 218718, 233802, 328077, 350703, 376681, 656154, 701406, 753362, 1130043, 2260086, 3390129, 6780258, 10170387, 20340774]

約数ペア:

[(1, 20340774), (2, 10170387), (3, 6780258), (6, 3390129), (9, 2260086), (18, 1130043), (27, 753362), (29, 701406), (31, 656154), (54, 376681), (58, 350703), (62, 328077), (87, 233802), (93, 218718), (174, 116901), (186, 109359), (261, 77934), (279, 72906), (419, 48546), (522, 38967), (558, 36453), (783, 25978), (837, 24302), (838, 24273), (899, 22626), (1257, 16182), (1566, 12989), (1674, 12151), (1798, 11313), (2514, 8091), (2697, 7542), (3771, 5394)]