157715720

素因数分解:

$2^3\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{3203}}^1$

素因数の和:4445

約数の個数: 32

約数和(自身を含む): 355259520

約数和(自身を除く): 197543800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1231, 2462, 3203, 4924, 6155, 6406, 9848, 12310, 12812, 16015, 24620, 25624, 32030, 49240, 64060, 128120, 3942893, 7885786, 15771572, 19714465, 31543144, 39428930, 78857860, 157715720]

約数ペア:

[(1, 157715720), (2, 78857860), (4, 39428930), (5, 31543144), (8, 19714465), (10, 15771572), (20, 7885786), (40, 3942893), (1231, 128120), (2462, 64060), (3203, 49240), (4924, 32030), (6155, 25624), (6406, 24620), (9848, 16015), (12310, 12812)]