20129520128

素因数分解:

$2^9\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{3527}}^1$

素因数の和:3773

約数の個数: 80

約数和(自身を含む): 41057622144

約数和(自身を除く): 20928102016

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 157, 256, 284, 314, 512, 568, 628, 1136, 1256, 2272, 2512, 3527, 4544, 5024, 7054, 9088, 10048, 11147, 14108, 18176, 20096, 22294, 28216, 36352, 40192, 44588, 56432, 80384, 89176, 112864, 178352, 225728, 250417, 356704, 451456, 500834, 553739, 713408, 902912, 1001668, 1107478, 1426816, 1805824, 2003336, 2214956, 2853632, 4006672, 4429912, 5707264, 8013344, 8859824, 16026688, 17719648, 32053376, 35439296, 39315469, 64106752, 70878592, 78630938, 128213504, 141757184, 157261876, 283514368, 314523752, 629047504, 1258095008, 2516190016, 5032380032, 10064760064, 20129520128]

約数ペア:

[(1, 20129520128), (2, 10064760064), (4, 5032380032), (8, 2516190016), (16, 1258095008), (32, 629047504), (64, 314523752), (71, 283514368), (128, 157261876), (142, 141757184), (157, 128213504), (256, 78630938), (284, 70878592), (314, 64106752), (512, 39315469), (568, 35439296), (628, 32053376), (1136, 17719648), (1256, 16026688), (2272, 8859824), (2512, 8013344), (3527, 5707264), (4544, 4429912), (5024, 4006672), (7054, 2853632), (9088, 2214956), (10048, 2003336), (11147, 1805824), (14108, 1426816), (18176, 1107478), (20096, 1001668), (22294, 902912), (28216, 713408), (36352, 553739), (40192, 500834), (44588, 451456), (56432, 356704), (80384, 250417), (89176, 225728), (112864, 178352)]