81982680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52553}}^1$

素因数の和:52580

約数の個数: 64

約数和(自身を含む): 264872160

約数和(自身を除く): 182889480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 52553, 105106, 157659, 210212, 262765, 315318, 420424, 525530, 630636, 683189, 788295, 1051060, 1261272, 1366378, 1576590, 2049567, 2102120, 2732756, 3153180, 3415945, 4099134, 5465512, 6306360, 6831890, 8198268, 10247835, 13663780, 16396536, 20495670, 27327560, 40991340, 81982680]

約数ペア:

[(1, 81982680), (2, 40991340), (3, 27327560), (4, 20495670), (5, 16396536), (6, 13663780), (8, 10247835), (10, 8198268), (12, 6831890), (13, 6306360), (15, 5465512), (20, 4099134), (24, 3415945), (26, 3153180), (30, 2732756), (39, 2102120), (40, 2049567), (52, 1576590), (60, 1366378), (65, 1261272), (78, 1051060), (104, 788295), (120, 683189), (130, 630636), (156, 525530), (195, 420424), (260, 315318), (312, 262765), (390, 210212), (520, 157659), (780, 105106), (1560, 52553)]