128973536

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 261954000

約数和(自身を除く): 132980464

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 197, 328, 394, 499, 656, 788, 998, 1312, 1576, 1996, 3152, 3992, 6304, 7984, 8077, 15968, 16154, 20459, 32308, 40918, 64616, 81836, 98303, 129232, 163672, 196606, 258464, 327344, 393212, 654688, 786424, 1572848, 3145696, 4030423, 8060846, 16121692, 32243384, 64486768, 128973536]

約数ペア:

[(1, 128973536), (2, 64486768), (4, 32243384), (8, 16121692), (16, 8060846), (32, 4030423), (41, 3145696), (82, 1572848), (164, 786424), (197, 654688), (328, 393212), (394, 327344), (499, 258464), (656, 196606), (788, 163672), (998, 129232), (1312, 98303), (1576, 81836), (1996, 64616), (3152, 40918), (3992, 32308), (6304, 20459), (7984, 16154), (8077, 15968)]