42490420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1361}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 102509568

約数和(自身を除く): 60019148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 1115, 1361, 1561, 2230, 2722, 3122, 4460, 5444, 6244, 6805, 7805, 9527, 13610, 15610, 19054, 27220, 31220, 38108, 47635, 95270, 190540, 303503, 607006, 1214012, 1517515, 2124521, 3035030, 4249042, 6070060, 8498084, 10622605, 21245210, 42490420]

約数ペア:

[(1, 42490420), (2, 21245210), (4, 10622605), (5, 8498084), (7, 6070060), (10, 4249042), (14, 3035030), (20, 2124521), (28, 1517515), (35, 1214012), (70, 607006), (140, 303503), (223, 190540), (446, 95270), (892, 47635), (1115, 38108), (1361, 31220), (1561, 27220), (2230, 19054), (2722, 15610), (3122, 13610), (4460, 9527), (5444, 7805), (6244, 6805)]