80158520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1272

約数の個数: 64

約数和(自身を含む): 195804000

約数和(自身を除く): 115645480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 260, 278, 520, 556, 695, 1109, 1112, 1390, 1807, 2218, 2780, 3614, 4436, 5545, 5560, 7228, 8872, 9035, 11090, 14417, 14456, 18070, 22180, 28834, 36140, 44360, 57668, 72085, 72280, 115336, 144170, 154151, 288340, 308302, 576680, 616604, 770755, 1233208, 1541510, 2003963, 3083020, 4007926, 6166040, 8015852, 10019815, 16031704, 20039630, 40079260, 80158520]

約数ペア:

[(1, 80158520), (2, 40079260), (4, 20039630), (5, 16031704), (8, 10019815), (10, 8015852), (13, 6166040), (20, 4007926), (26, 3083020), (40, 2003963), (52, 1541510), (65, 1233208), (104, 770755), (130, 616604), (139, 576680), (260, 308302), (278, 288340), (520, 154151), (556, 144170), (695, 115336), (1109, 72280), (1112, 72085), (1390, 57668), (1807, 44360), (2218, 36140), (2780, 28834), (3614, 22180), (4436, 18070), (5545, 14456), (5560, 14417), (7228, 11090), (8872, 9035)]