26448920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 35240680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 134, 139, 142, 268, 278, 284, 335, 355, 536, 556, 568, 670, 695, 710, 1112, 1340, 1390, 1420, 2680, 2780, 2840, 4757, 5560, 9313, 9514, 9869, 18626, 19028, 19738, 23785, 37252, 38056, 39476, 46565, 47570, 49345, 74504, 78952, 93130, 95140, 98690, 186260, 190280, 197380, 372520, 394760, 661223, 1322446, 2644892, 3306115, 5289784, 6612230, 13224460, 26448920]

約数ペア:

[(1, 26448920), (2, 13224460), (4, 6612230), (5, 5289784), (8, 3306115), (10, 2644892), (20, 1322446), (40, 661223), (67, 394760), (71, 372520), (134, 197380), (139, 190280), (142, 186260), (268, 98690), (278, 95140), (284, 93130), (335, 78952), (355, 74504), (536, 49345), (556, 47570), (568, 46565), (670, 39476), (695, 38056), (710, 37252), (1112, 23785), (1340, 19738), (1390, 19028), (1420, 18626), (2680, 9869), (2780, 9514), (2840, 9313), (4757, 5560)]