20545688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 22654312

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 59, 76, 79, 116, 118, 152, 158, 232, 236, 316, 472, 551, 632, 1102, 1121, 1501, 1711, 2204, 2242, 2291, 3002, 3422, 4408, 4484, 4582, 4661, 6004, 6844, 8968, 9164, 9322, 12008, 13688, 18328, 18644, 32509, 37288, 43529, 65018, 87058, 88559, 130036, 135169, 174116, 177118, 260072, 270338, 348232, 354236, 540676, 708472, 1081352, 2568211, 5136422, 10272844, 20545688]

約数ペア:

[(1, 20545688), (2, 10272844), (4, 5136422), (8, 2568211), (19, 1081352), (29, 708472), (38, 540676), (58, 354236), (59, 348232), (76, 270338), (79, 260072), (116, 177118), (118, 174116), (152, 135169), (158, 130036), (232, 88559), (236, 87058), (316, 65018), (472, 43529), (551, 37288), (632, 32509), (1102, 18644), (1121, 18328), (1501, 13688), (1711, 12008), (2204, 9322), (2242, 9164), (2291, 8968), (3002, 6844), (3422, 6004), (4408, 4661), (4484, 4582)]