19976340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1493}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 56222208

約数和(自身を除く): 36245868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 223, 446, 669, 892, 1115, 1338, 1493, 2230, 2676, 2986, 3345, 4460, 4479, 5972, 6690, 7465, 8958, 13380, 14930, 17916, 22395, 29860, 44790, 89580, 332939, 665878, 998817, 1331756, 1664695, 1997634, 3329390, 3995268, 4994085, 6658780, 9988170, 19976340]

約数ペア:

[(1, 19976340), (2, 9988170), (3, 6658780), (4, 4994085), (5, 3995268), (6, 3329390), (10, 1997634), (12, 1664695), (15, 1331756), (20, 998817), (30, 665878), (60, 332939), (223, 89580), (446, 44790), (669, 29860), (892, 22395), (1115, 17916), (1338, 14930), (1493, 13380), (2230, 8958), (2676, 7465), (2986, 6690), (3345, 5972), (4460, 4479)]