1989420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 5660928

約数和(自身を除く): 3671508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 467, 710, 852, 934, 1065, 1401, 1420, 1868, 2130, 2335, 2802, 4260, 4670, 5604, 7005, 9340, 14010, 28020, 33157, 66314, 99471, 132628, 165785, 198942, 331570, 397884, 497355, 663140, 994710, 1989420]

約数ペア:

[(1, 1989420), (2, 994710), (3, 663140), (4, 497355), (5, 397884), (6, 331570), (10, 198942), (12, 165785), (15, 132628), (20, 99471), (30, 66314), (60, 33157), (71, 28020), (142, 14010), (213, 9340), (284, 7005), (355, 5604), (426, 4670), (467, 4260), (710, 2802), (852, 2335), (934, 2130), (1065, 1868), (1401, 1420)]