1278804540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1639493}}^1$

素因数の和:1639518

約数の個数: 48

約数和(自身を含む): 3856089888

約数和(自身を除く): 2577285348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1639493, 3278986, 4918479, 6557972, 8197465, 9836958, 16394930, 19673916, 21313409, 24592395, 32789860, 42626818, 49184790, 63940227, 85253636, 98369580, 106567045, 127880454, 213134090, 255760908, 319701135, 426268180, 639402270, 1278804540]

約数ペア:

[(1, 1278804540), (2, 639402270), (3, 426268180), (4, 319701135), (5, 255760908), (6, 213134090), (10, 127880454), (12, 106567045), (13, 98369580), (15, 85253636), (20, 63940227), (26, 49184790), (30, 42626818), (39, 32789860), (52, 24592395), (60, 21313409), (65, 19673916), (78, 16394930), (130, 9836958), (156, 8197465), (195, 6557972), (260, 4918479), (390, 3278986), (780, 1639493)]