678686720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1129

約数の個数: 104

約数和(自身を含む): 1682759040

約数和(自身を除く): 1004072320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1024, 1069, 1240, 1280, 1984, 2048, 2138, 2480, 2560, 3968, 4096, 4276, 4960, 5120, 5345, 7936, 8552, 9920, 10240, 10690, 15872, 17104, 19840, 20480, 21380, 31744, 33139, 34208, 39680, 42760, 63488, 66278, 68416, 79360, 85520, 126976, 132556, 136832, 158720, 165695, 171040, 265112, 273664, 317440, 331390, 342080, 530224, 547328, 634880, 662780, 684160, 1060448, 1094656, 1325560, 1368320, 2120896, 2189312, 2651120, 2736640, 4241792, 4378624, 5302240, 5473280, 8483584, 10604480, 10946560, 16967168, 21208960, 21893120, 33934336, 42417920, 67868672, 84835840, 135737344, 169671680, 339343360, 678686720]

約数ペア:

[(1, 678686720), (2, 339343360), (4, 169671680), (5, 135737344), (8, 84835840), (10, 67868672), (16, 42417920), (20, 33934336), (31, 21893120), (32, 21208960), (40, 16967168), (62, 10946560), (64, 10604480), (80, 8483584), (124, 5473280), (128, 5302240), (155, 4378624), (160, 4241792), (248, 2736640), (256, 2651120), (310, 2189312), (320, 2120896), (496, 1368320), (512, 1325560), (620, 1094656), (640, 1060448), (992, 684160), (1024, 662780), (1069, 634880), (1240, 547328), (1280, 530224), (1984, 342080), (2048, 331390), (2138, 317440), (2480, 273664), (2560, 265112), (3968, 171040), (4096, 165695), (4276, 158720), (4960, 136832), (5120, 132556), (5345, 126976), (7936, 85520), (8552, 79360), (9920, 68416), (10240, 66278), (10690, 63488), (15872, 42760), (17104, 39680), (19840, 34208), (20480, 33139), (21380, 31744)]