29887780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{827}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 68160960

約数和(自身を除く): 38273180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 827, 1390, 1654, 1807, 2780, 3308, 3614, 4135, 7228, 8270, 9035, 10751, 16540, 18070, 21502, 36140, 43004, 53755, 107510, 114953, 215020, 229906, 459812, 574765, 1149530, 1494389, 2299060, 2988778, 5977556, 7471945, 14943890, 29887780]

約数ペア:

[(1, 29887780), (2, 14943890), (4, 7471945), (5, 5977556), (10, 2988778), (13, 2299060), (20, 1494389), (26, 1149530), (52, 574765), (65, 459812), (130, 229906), (139, 215020), (260, 114953), (278, 107510), (556, 53755), (695, 43004), (827, 36140), (1390, 21502), (1654, 18070), (1807, 16540), (2780, 10751), (3308, 9035), (3614, 8270), (4135, 7228)]