30809380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{613}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 74269440

約数和(自身を除く): 43460060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 359, 613, 718, 1226, 1436, 1795, 2452, 2513, 3065, 3590, 4291, 5026, 6130, 7180, 8582, 10052, 12260, 12565, 17164, 21455, 25130, 42910, 50260, 85820, 220067, 440134, 880268, 1100335, 1540469, 2200670, 3080938, 4401340, 6161876, 7702345, 15404690, 30809380]

約数ペア:

[(1, 30809380), (2, 15404690), (4, 7702345), (5, 6161876), (7, 4401340), (10, 3080938), (14, 2200670), (20, 1540469), (28, 1100335), (35, 880268), (70, 440134), (140, 220067), (359, 85820), (613, 50260), (718, 42910), (1226, 25130), (1436, 21455), (1795, 17164), (2452, 12565), (2513, 12260), (3065, 10052), (3590, 8582), (4291, 7180), (5026, 6130)]