20147208320

素因数分解:

$2^7\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{14447}}^1$

素因数の和:16645

約数の個数: 64

約数和(自身を含む): 48189859200

約数和(自身を除く): 28042650880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2179, 4358, 8716, 10895, 14447, 17432, 21790, 28894, 34864, 43580, 57788, 69728, 72235, 87160, 115576, 139456, 144470, 174320, 231152, 278912, 288940, 348640, 462304, 577880, 697280, 924608, 1155760, 1394560, 1849216, 2311520, 4623040, 9246080, 31480013, 62960026, 125920052, 157400065, 251840104, 314800130, 503680208, 629600260, 1007360416, 1259200520, 2014720832, 2518401040, 4029441664, 5036802080, 10073604160, 20147208320]

約数ペア:

[(1, 20147208320), (2, 10073604160), (4, 5036802080), (5, 4029441664), (8, 2518401040), (10, 2014720832), (16, 1259200520), (20, 1007360416), (32, 629600260), (40, 503680208), (64, 314800130), (80, 251840104), (128, 157400065), (160, 125920052), (320, 62960026), (640, 31480013), (2179, 9246080), (4358, 4623040), (8716, 2311520), (10895, 1849216), (14447, 1394560), (17432, 1155760), (21790, 924608), (28894, 697280), (34864, 577880), (43580, 462304), (57788, 348640), (69728, 288940), (72235, 278912), (87160, 231152), (115576, 174320), (139456, 144470)]