28782420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{977}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 80837568

約数和(自身を除く): 52055148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 977, 982, 1473, 1954, 1964, 2455, 2931, 2946, 3908, 4885, 4910, 5862, 5892, 7365, 9770, 9820, 11724, 14655, 14730, 19540, 29310, 29460, 58620, 479707, 959414, 1439121, 1918828, 2398535, 2878242, 4797070, 5756484, 7195605, 9594140, 14391210, 28782420]

約数ペア:

[(1, 28782420), (2, 14391210), (3, 9594140), (4, 7195605), (5, 5756484), (6, 4797070), (10, 2878242), (12, 2398535), (15, 1918828), (20, 1439121), (30, 959414), (60, 479707), (491, 58620), (977, 29460), (982, 29310), (1473, 19540), (1954, 14730), (1964, 14655), (2455, 11724), (2931, 9820), (2946, 9770), (3908, 7365), (4885, 5892), (4910, 5862)]