30721908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{751}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 82202624

約数和(自身を除く): 51480716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 487, 751, 974, 1461, 1502, 1948, 2253, 2922, 3004, 3409, 4506, 5257, 5844, 6818, 9012, 10227, 10514, 13636, 15771, 20454, 21028, 31542, 40908, 63084, 365737, 731474, 1097211, 1462948, 2194422, 2560159, 4388844, 5120318, 7680477, 10240636, 15360954, 30721908]

約数ペア:

[(1, 30721908), (2, 15360954), (3, 10240636), (4, 7680477), (6, 5120318), (7, 4388844), (12, 2560159), (14, 2194422), (21, 1462948), (28, 1097211), (42, 731474), (84, 365737), (487, 63084), (751, 40908), (974, 31542), (1461, 21028), (1502, 20454), (1948, 15771), (2253, 13636), (2922, 10514), (3004, 10227), (3409, 9012), (4506, 6818), (5257, 5844)]