18424520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{211}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 43502400

約数和(自身を除く): 25077880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 59, 74, 118, 148, 185, 211, 236, 295, 296, 370, 422, 472, 590, 740, 844, 1055, 1180, 1480, 1688, 2110, 2183, 2360, 4220, 4366, 7807, 8440, 8732, 10915, 12449, 15614, 17464, 21830, 24898, 31228, 39035, 43660, 49796, 62245, 62456, 78070, 87320, 99592, 124490, 156140, 248980, 312280, 460613, 497960, 921226, 1842452, 2303065, 3684904, 4606130, 9212260, 18424520]

約数ペア:

[(1, 18424520), (2, 9212260), (4, 4606130), (5, 3684904), (8, 2303065), (10, 1842452), (20, 921226), (37, 497960), (40, 460613), (59, 312280), (74, 248980), (118, 156140), (148, 124490), (185, 99592), (211, 87320), (236, 78070), (295, 62456), (296, 62245), (370, 49796), (422, 43660), (472, 39035), (590, 31228), (740, 24898), (844, 21830), (1055, 17464), (1180, 15614), (1480, 12449), (1688, 10915), (2110, 8732), (2183, 8440), (2360, 7807), (4220, 4366)]