1865804560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{20123}}^1$

素因数の和:20216

約数の個数: 80

約数和(自身を含む): 4641399360

約数和(自身を除く): 2775594800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 760, 976, 1159, 1220, 1520, 2318, 2440, 4636, 4880, 5795, 9272, 11590, 18544, 20123, 23180, 40246, 46360, 80492, 92720, 100615, 160984, 201230, 321968, 382337, 402460, 764674, 804920, 1227503, 1529348, 1609840, 1911685, 2455006, 3058696, 3823370, 4910012, 6117392, 6137515, 7646740, 9820024, 12275030, 15293480, 19640048, 23322557, 24550060, 30586960, 46645114, 49100120, 93290228, 98200240, 116612785, 186580456, 233225570, 373160912, 466451140, 932902280, 1865804560]

約数ペア:

[(1, 1865804560), (2, 932902280), (4, 466451140), (5, 373160912), (8, 233225570), (10, 186580456), (16, 116612785), (19, 98200240), (20, 93290228), (38, 49100120), (40, 46645114), (61, 30586960), (76, 24550060), (80, 23322557), (95, 19640048), (122, 15293480), (152, 12275030), (190, 9820024), (244, 7646740), (304, 6137515), (305, 6117392), (380, 4910012), (488, 3823370), (610, 3058696), (760, 2455006), (976, 1911685), (1159, 1609840), (1220, 1529348), (1520, 1227503), (2318, 804920), (2440, 764674), (4636, 402460), (4880, 382337), (5795, 321968), (9272, 201230), (11590, 160984), (18544, 100615), (20123, 92720), (23180, 80492), (40246, 46360)]