90509020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2237}}^1$

素因数の和:2287

約数の個数: 72

約数和(自身を含む): 230854176

約数和(自身を除く): 140345156

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 2023, 2237, 2380, 2890, 4046, 4474, 5780, 8092, 8948, 10115, 11185, 15659, 20230, 22370, 31318, 38029, 40460, 44740, 62636, 76058, 78295, 152116, 156590, 190145, 266203, 313180, 380290, 532406, 646493, 760580, 1064812, 1292986, 1331015, 2585972, 2662030, 3232465, 4525451, 5324060, 6464930, 9050902, 12929860, 18101804, 22627255, 45254510, 90509020]

約数ペア:

[(1, 90509020), (2, 45254510), (4, 22627255), (5, 18101804), (7, 12929860), (10, 9050902), (14, 6464930), (17, 5324060), (20, 4525451), (28, 3232465), (34, 2662030), (35, 2585972), (68, 1331015), (70, 1292986), (85, 1064812), (119, 760580), (140, 646493), (170, 532406), (238, 380290), (289, 313180), (340, 266203), (476, 190145), (578, 156590), (595, 152116), (1156, 78295), (1190, 76058), (1445, 62636), (2023, 44740), (2237, 40460), (2380, 38029), (2890, 31318), (4046, 22370), (4474, 20230), (5780, 15659), (8092, 11185), (8948, 10115)]