20751220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8719}}^1$

素因数の和:8752

約数の個数: 48

約数和(自身を含む): 52738560

約数和(自身を除く): 31987340

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8719, 17438, 34876, 43595, 61033, 87190, 122066, 148223, 174380, 244132, 296446, 305165, 592892, 610330, 741115, 1037561, 1220660, 1482230, 2075122, 2964460, 4150244, 5187805, 10375610, 20751220]

約数ペア:

[(1, 20751220), (2, 10375610), (4, 5187805), (5, 4150244), (7, 2964460), (10, 2075122), (14, 1482230), (17, 1220660), (20, 1037561), (28, 741115), (34, 610330), (35, 592892), (68, 305165), (70, 296446), (85, 244132), (119, 174380), (140, 148223), (170, 122066), (238, 87190), (340, 61033), (476, 43595), (595, 34876), (1190, 17438), (2380, 8719)]