638611376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1194

約数の個数: 80

約数和(自身を含む): 1402410240

約数和(自身を除く): 763798864

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 131, 184, 208, 262, 299, 368, 524, 598, 1019, 1048, 1196, 1703, 2038, 2096, 2392, 3013, 3406, 4076, 4784, 6026, 6812, 8152, 12052, 13247, 13624, 16304, 23437, 24104, 26494, 27248, 39169, 46874, 48208, 52988, 78338, 93748, 105976, 133489, 156676, 187496, 211952, 266978, 304681, 313352, 374992, 533956, 609362, 626704, 1067912, 1218724, 1735357, 2135824, 2437448, 3070247, 3470714, 4874896, 6140494, 6941428, 12280988, 13882856, 24561976, 27765712, 39913211, 49123952, 79826422, 159652844, 319305688, 638611376]

約数ペア:

[(1, 638611376), (2, 319305688), (4, 159652844), (8, 79826422), (13, 49123952), (16, 39913211), (23, 27765712), (26, 24561976), (46, 13882856), (52, 12280988), (92, 6941428), (104, 6140494), (131, 4874896), (184, 3470714), (208, 3070247), (262, 2437448), (299, 2135824), (368, 1735357), (524, 1218724), (598, 1067912), (1019, 626704), (1048, 609362), (1196, 533956), (1703, 374992), (2038, 313352), (2096, 304681), (2392, 266978), (3013, 211952), (3406, 187496), (4076, 156676), (4784, 133489), (6026, 105976), (6812, 93748), (8152, 78338), (12052, 52988), (13247, 48208), (13624, 46874), (16304, 39169), (23437, 27248), (24104, 26494)]