2131220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1171}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 5513088

約数和(自身を除く): 3381868

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1171, 1820, 2342, 4684, 5855, 8197, 11710, 15223, 16394, 23420, 30446, 32788, 40985, 60892, 76115, 81970, 106561, 152230, 163940, 213122, 304460, 426244, 532805, 1065610, 2131220]

約数ペア:

[(1, 2131220), (2, 1065610), (4, 532805), (5, 426244), (7, 304460), (10, 213122), (13, 163940), (14, 152230), (20, 106561), (26, 81970), (28, 76115), (35, 60892), (52, 40985), (65, 32788), (70, 30446), (91, 23420), (130, 16394), (140, 15223), (182, 11710), (260, 8197), (364, 5855), (455, 4684), (910, 2342), (1171, 1820)]