78780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 239904

約数和(自身を除く): 161124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 101, 130, 156, 195, 202, 260, 303, 390, 404, 505, 606, 780, 1010, 1212, 1313, 1515, 2020, 2626, 3030, 3939, 5252, 6060, 6565, 7878, 13130, 15756, 19695, 26260, 39390, 78780]

約数ペア:

[(1, 78780), (2, 39390), (3, 26260), (4, 19695), (5, 15756), (6, 13130), (10, 7878), (12, 6565), (13, 6060), (15, 5252), (20, 3939), (26, 3030), (30, 2626), (39, 2020), (52, 1515), (60, 1313), (65, 1212), (78, 1010), (101, 780), (130, 606), (156, 505), (195, 404), (202, 390), (260, 303)]