89721440

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{18089}}^1$

素因数の和:18135

約数の個数: 48

約数和(自身を含む): 218816640

約数和(自身を除く): 129095200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 18089, 36178, 72356, 90445, 144712, 180890, 289424, 361780, 560759, 578848, 723560, 1121518, 1447120, 2243036, 2803795, 2894240, 4486072, 5607590, 8972144, 11215180, 17944288, 22430360, 44860720, 89721440]

約数ペア:

[(1, 89721440), (2, 44860720), (4, 22430360), (5, 17944288), (8, 11215180), (10, 8972144), (16, 5607590), (20, 4486072), (31, 2894240), (32, 2803795), (40, 2243036), (62, 1447120), (80, 1121518), (124, 723560), (155, 578848), (160, 560759), (248, 361780), (310, 289424), (496, 180890), (620, 144712), (992, 90445), (1240, 72356), (2480, 36178), (4960, 18089)]