391147520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:369

約数の個数: 104

約数和(自身を含む): 955398240

約数和(自身を除く): 564250720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 269, 284, 320, 355, 512, 538, 568, 640, 710, 1024, 1076, 1136, 1280, 1345, 1420, 2048, 2152, 2272, 2560, 2690, 2840, 4096, 4304, 4544, 5120, 5380, 5680, 8608, 9088, 10240, 10760, 11360, 17216, 18176, 19099, 20480, 21520, 22720, 34432, 36352, 38198, 43040, 45440, 68864, 72704, 76396, 86080, 90880, 95495, 137728, 145408, 152792, 172160, 181760, 190990, 275456, 290816, 305584, 344320, 363520, 381980, 550912, 611168, 688640, 727040, 763960, 1101824, 1222336, 1377280, 1454080, 1527920, 2444672, 2754560, 3055840, 4889344, 5509120, 6111680, 9778688, 12223360, 19557376, 24446720, 39114752, 48893440, 78229504, 97786880, 195573760, 391147520]

約数ペア:

[(1, 391147520), (2, 195573760), (4, 97786880), (5, 78229504), (8, 48893440), (10, 39114752), (16, 24446720), (20, 19557376), (32, 12223360), (40, 9778688), (64, 6111680), (71, 5509120), (80, 4889344), (128, 3055840), (142, 2754560), (160, 2444672), (256, 1527920), (269, 1454080), (284, 1377280), (320, 1222336), (355, 1101824), (512, 763960), (538, 727040), (568, 688640), (640, 611168), (710, 550912), (1024, 381980), (1076, 363520), (1136, 344320), (1280, 305584), (1345, 290816), (1420, 275456), (2048, 190990), (2152, 181760), (2272, 172160), (2560, 152792), (2690, 145408), (2840, 137728), (4096, 95495), (4304, 90880), (4544, 86080), (5120, 76396), (5380, 72704), (5680, 68864), (8608, 45440), (9088, 43040), (10240, 38198), (10760, 36352), (11360, 34432), (17216, 22720), (18176, 21520), (19099, 20480)]