20917897320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{560501}}^1$

素因数の和:560826

約数の個数: 64

約数和(自身を含む): 62955584640

約数和(自身を除く): 42037687320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 311, 622, 933, 1244, 1555, 1866, 2488, 3110, 3732, 4665, 6220, 7464, 9330, 12440, 18660, 37320, 560501, 1121002, 1681503, 2242004, 2802505, 3363006, 4484008, 5605010, 6726012, 8407515, 11210020, 13452024, 16815030, 22420040, 33630060, 67260120, 174315811, 348631622, 522947433, 697263244, 871579055, 1045894866, 1394526488, 1743158110, 2091789732, 2614737165, 3486316220, 4183579464, 5229474330, 6972632440, 10458948660, 20917897320]

約数ペア:

[(1, 20917897320), (2, 10458948660), (3, 6972632440), (4, 5229474330), (5, 4183579464), (6, 3486316220), (8, 2614737165), (10, 2091789732), (12, 1743158110), (15, 1394526488), (20, 1045894866), (24, 871579055), (30, 697263244), (40, 522947433), (60, 348631622), (120, 174315811), (311, 67260120), (622, 33630060), (933, 22420040), (1244, 16815030), (1555, 13452024), (1866, 11210020), (2488, 8407515), (3110, 6726012), (3732, 5605010), (4665, 4484008), (6220, 3363006), (7464, 2802505), (9330, 2242004), (12440, 1681503), (18660, 1121002), (37320, 560501)]