20647505920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6037}}^1$

素因数の和:6233

約数の個数: 104

約数和(自身を含む): 49852916064

約数和(自身を除く): 29205410144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 512, 640, 668, 835, 1024, 1280, 1336, 1670, 2048, 2560, 2672, 3340, 4096, 5120, 5344, 6037, 6680, 10240, 10688, 12074, 13360, 20480, 21376, 24148, 26720, 30185, 42752, 48296, 53440, 60370, 85504, 96592, 106880, 120740, 171008, 193184, 213760, 241480, 342016, 386368, 427520, 482960, 684032, 772736, 855040, 965920, 1008179, 1545472, 1710080, 1931840, 2016358, 3090944, 3420160, 3863680, 4032716, 5040895, 6181888, 7727360, 8065432, 10081790, 12363776, 15454720, 16130864, 20163580, 24727552, 30909440, 32261728, 40327160, 61818880, 64523456, 80654320, 123637760, 129046912, 161308640, 258093824, 322617280, 516187648, 645234560, 1032375296, 1290469120, 2064750592, 2580938240, 4129501184, 5161876480, 10323752960, 20647505920]

約数ペア:

[(1, 20647505920), (2, 10323752960), (4, 5161876480), (5, 4129501184), (8, 2580938240), (10, 2064750592), (16, 1290469120), (20, 1032375296), (32, 645234560), (40, 516187648), (64, 322617280), (80, 258093824), (128, 161308640), (160, 129046912), (167, 123637760), (256, 80654320), (320, 64523456), (334, 61818880), (512, 40327160), (640, 32261728), (668, 30909440), (835, 24727552), (1024, 20163580), (1280, 16130864), (1336, 15454720), (1670, 12363776), (2048, 10081790), (2560, 8065432), (2672, 7727360), (3340, 6181888), (4096, 5040895), (5120, 4032716), (5344, 3863680), (6037, 3420160), (6680, 3090944), (10240, 2016358), (10688, 1931840), (12074, 1710080), (13360, 1545472), (20480, 1008179), (21376, 965920), (24148, 855040), (26720, 772736), (30185, 684032), (42752, 482960), (48296, 427520), (53440, 386368), (60370, 342016), (85504, 241480), (96592, 213760), (106880, 193184), (120740, 171008)]