77940340

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19583}}^1$

素因数の和:19791

約数の個数: 24

約数和(自身を含む): 164505600

約数和(自身を除く): 86565260

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 19583, 39166, 78332, 97915, 195830, 391660, 3897017, 7794034, 15588068, 19485085, 38970170, 77940340]

約数ペア:

[(1, 77940340), (2, 38970170), (4, 19485085), (5, 15588068), (10, 7794034), (20, 3897017), (199, 391660), (398, 195830), (796, 97915), (995, 78332), (1990, 39166), (3980, 19583)]