20402370

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{7817}}^1$

素因数の和:7859

約数の個数: 48

約数和(自身を含む): 54882360

約数和(自身を除く): 34479990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 7817, 15634, 23451, 39085, 46902, 70353, 78170, 117255, 140706, 226693, 234510, 351765, 453386, 680079, 703530, 1133465, 1360158, 2040237, 2266930, 3400395, 4080474, 6800790, 10201185, 20402370]

約数ペア:

[(1, 20402370), (2, 10201185), (3, 6800790), (5, 4080474), (6, 3400395), (9, 2266930), (10, 2040237), (15, 1360158), (18, 1133465), (29, 703530), (30, 680079), (45, 453386), (58, 351765), (87, 234510), (90, 226693), (145, 140706), (174, 117255), (261, 78170), (290, 70353), (435, 46902), (522, 39085), (870, 23451), (1305, 15634), (2610, 7817)]