2491440520

素因数分解:

$2^3\times 5^1\times {\mathrm{8317}}^1\times {\mathrm{7489}}^1$

素因数の和:15817

約数の個数: 32

約数和(自身を含む): 5607163800

約数和(自身を除く): 3115723280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7489, 8317, 14978, 16634, 29956, 33268, 37445, 41585, 59912, 66536, 74890, 83170, 149780, 166340, 299560, 332680, 62286013, 124572026, 249144052, 311430065, 498288104, 622860130, 1245720260, 2491440520]

約数ペア:

[(1, 2491440520), (2, 1245720260), (4, 622860130), (5, 498288104), (8, 311430065), (10, 249144052), (20, 124572026), (40, 62286013), (7489, 332680), (8317, 299560), (14978, 166340), (16634, 149780), (29956, 83170), (33268, 74890), (37445, 66536), (41585, 59912)]