280338688

素因数分解:

$2^8\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2143}}^1$

素因数の和:2239

約数の個数: 72

約数和(自身を含む): 648585728

約数和(自身を除く): 368247040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 584, 896, 1022, 1168, 1792, 2044, 2143, 2336, 4088, 4286, 4672, 8176, 8572, 9344, 15001, 16352, 17144, 18688, 30002, 32704, 34288, 60004, 65408, 68576, 120008, 130816, 137152, 156439, 240016, 274304, 312878, 480032, 548608, 625756, 960064, 1095073, 1251512, 1920128, 2190146, 2503024, 3840256, 4380292, 5006048, 8760584, 10012096, 17521168, 20024192, 35042336, 40048384, 70084672, 140169344, 280338688]

約数ペア:

[(1, 280338688), (2, 140169344), (4, 70084672), (7, 40048384), (8, 35042336), (14, 20024192), (16, 17521168), (28, 10012096), (32, 8760584), (56, 5006048), (64, 4380292), (73, 3840256), (112, 2503024), (128, 2190146), (146, 1920128), (224, 1251512), (256, 1095073), (292, 960064), (448, 625756), (511, 548608), (584, 480032), (896, 312878), (1022, 274304), (1168, 240016), (1792, 156439), (2044, 137152), (2143, 130816), (2336, 120008), (4088, 68576), (4286, 65408), (4672, 60004), (8176, 34288), (8572, 32704), (9344, 30002), (15001, 18688), (16352, 17144)]