2191020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 6733776

約数和(自身を除く): 4542756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 53, 60, 65, 78, 106, 130, 156, 159, 195, 212, 260, 265, 318, 390, 530, 636, 689, 780, 795, 1060, 1378, 1590, 2067, 2756, 2809, 3180, 3445, 4134, 5618, 6890, 8268, 8427, 10335, 11236, 13780, 14045, 16854, 20670, 28090, 33708, 36517, 41340, 42135, 56180, 73034, 84270, 109551, 146068, 168540, 182585, 219102, 365170, 438204, 547755, 730340, 1095510, 2191020]

約数ペア:

[(1, 2191020), (2, 1095510), (3, 730340), (4, 547755), (5, 438204), (6, 365170), (10, 219102), (12, 182585), (13, 168540), (15, 146068), (20, 109551), (26, 84270), (30, 73034), (39, 56180), (52, 42135), (53, 41340), (60, 36517), (65, 33708), (78, 28090), (106, 20670), (130, 16854), (156, 14045), (159, 13780), (195, 11236), (212, 10335), (260, 8427), (265, 8268), (318, 6890), (390, 5618), (530, 4134), (636, 3445), (689, 3180), (780, 2809), (795, 2756), (1060, 2067), (1378, 1590)]