30720990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14423}}^1$

素因数の和:14504

約数の個数: 32

約数和(自身を含む): 74774016

約数和(自身を除く): 44053026

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 14423, 28846, 43269, 72115, 86538, 144230, 216345, 432690, 1024033, 2048066, 3072099, 5120165, 6144198, 10240330, 15360495, 30720990]

約数ペア:

[(1, 30720990), (2, 15360495), (3, 10240330), (5, 6144198), (6, 5120165), (10, 3072099), (15, 2048066), (30, 1024033), (71, 432690), (142, 216345), (213, 144230), (355, 86538), (426, 72115), (710, 43269), (1065, 28846), (2130, 14423)]