31449040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 84637440

約数和(自身を除く): 53188400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 631, 712, 890, 1246, 1262, 1424, 1780, 2492, 2524, 3115, 3155, 3560, 4417, 4984, 5048, 6230, 6310, 7120, 8834, 9968, 10096, 12460, 12620, 17668, 22085, 24920, 25240, 35336, 44170, 49840, 50480, 56159, 70672, 88340, 112318, 176680, 224636, 280795, 353360, 393113, 449272, 561590, 786226, 898544, 1123180, 1572452, 1965565, 2246360, 3144904, 3931130, 4492720, 6289808, 7862260, 15724520, 31449040]

約数ペア:

[(1, 31449040), (2, 15724520), (4, 7862260), (5, 6289808), (7, 4492720), (8, 3931130), (10, 3144904), (14, 2246360), (16, 1965565), (20, 1572452), (28, 1123180), (35, 898544), (40, 786226), (56, 561590), (70, 449272), (80, 393113), (89, 353360), (112, 280795), (140, 224636), (178, 176680), (280, 112318), (356, 88340), (445, 70672), (560, 56159), (623, 50480), (631, 49840), (712, 44170), (890, 35336), (1246, 25240), (1262, 24920), (1424, 22085), (1780, 17668), (2492, 12620), (2524, 12460), (3115, 10096), (3155, 9968), (3560, 8834), (4417, 7120), (4984, 6310), (5048, 6230)]