159740920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 370591200

約数和(自身を除く): 210850280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 257, 328, 379, 410, 514, 758, 820, 1028, 1285, 1516, 1640, 1895, 2056, 2570, 3032, 3790, 5140, 7580, 10280, 10537, 15160, 15539, 21074, 31078, 42148, 52685, 62156, 77695, 84296, 97403, 105370, 124312, 155390, 194806, 210740, 310780, 389612, 421480, 487015, 621560, 779224, 974030, 1948060, 3896120, 3993523, 7987046, 15974092, 19967615, 31948184, 39935230, 79870460, 159740920]

約数ペア:

[(1, 159740920), (2, 79870460), (4, 39935230), (5, 31948184), (8, 19967615), (10, 15974092), (20, 7987046), (40, 3993523), (41, 3896120), (82, 1948060), (164, 974030), (205, 779224), (257, 621560), (328, 487015), (379, 421480), (410, 389612), (514, 310780), (758, 210740), (820, 194806), (1028, 155390), (1285, 124312), (1516, 105370), (1640, 97403), (1895, 84296), (2056, 77695), (2570, 62156), (3032, 52685), (3790, 42148), (5140, 31078), (7580, 21074), (10280, 15539), (10537, 15160)]