81018240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42197}}^1$

素因数の和:42219

約数の個数: 64

約数和(自身を含む): 258251760

約数和(自身を除く): 177233520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42197, 84394, 126591, 168788, 210985, 253182, 337576, 421970, 506364, 632955, 675152, 843940, 1012728, 1265910, 1350304, 1687880, 2025456, 2531820, 2700608, 3375760, 4050912, 5063640, 5401216, 6751520, 8101824, 10127280, 13503040, 16203648, 20254560, 27006080, 40509120, 81018240]

約数ペア:

[(1, 81018240), (2, 40509120), (3, 27006080), (4, 20254560), (5, 16203648), (6, 13503040), (8, 10127280), (10, 8101824), (12, 6751520), (15, 5401216), (16, 5063640), (20, 4050912), (24, 3375760), (30, 2700608), (32, 2531820), (40, 2025456), (48, 1687880), (60, 1350304), (64, 1265910), (80, 1012728), (96, 843940), (120, 675152), (128, 632955), (160, 506364), (192, 421970), (240, 337576), (320, 253182), (384, 210985), (480, 168788), (640, 126591), (960, 84394), (1920, 42197)]