20502736

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{587}}^1$

素因数の和:691

約数の個数: 40

約数和(自身を含む): 41559840

約数和(自身を除く): 21057104

約数列:

[1, 2, 4, 8, 16, 37, 59, 74, 118, 148, 236, 296, 472, 587, 592, 944, 1174, 2183, 2348, 4366, 4696, 8732, 9392, 17464, 21719, 34633, 34928, 43438, 69266, 86876, 138532, 173752, 277064, 347504, 554128, 1281421, 2562842, 5125684, 10251368, 20502736]

約数ペア:

[(1, 20502736), (2, 10251368), (4, 5125684), (8, 2562842), (16, 1281421), (37, 554128), (59, 347504), (74, 277064), (118, 173752), (148, 138532), (236, 86876), (296, 69266), (472, 43438), (587, 34928), (592, 34633), (944, 21719), (1174, 17464), (2183, 9392), (2348, 8732), (4366, 4696)]