78622720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:389

約数の個数: 104

約数和(自身を含む): 206413200

約数和(自身を除く): 127790480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 349, 352, 440, 512, 640, 698, 704, 880, 1024, 1280, 1396, 1408, 1745, 1760, 2048, 2560, 2792, 2816, 3490, 3520, 3839, 4096, 5120, 5584, 5632, 6980, 7040, 7678, 10240, 11168, 11264, 13960, 14080, 15356, 19195, 20480, 22336, 22528, 27920, 28160, 30712, 38390, 44672, 45056, 55840, 56320, 61424, 76780, 89344, 111680, 112640, 122848, 153560, 178688, 223360, 225280, 245696, 307120, 357376, 446720, 491392, 614240, 714752, 893440, 982784, 1228480, 1429504, 1786880, 1965568, 2456960, 3573760, 3931136, 4913920, 7147520, 7862272, 9827840, 15724544, 19655680, 39311360, 78622720]

約数ペア:

[(1, 78622720), (2, 39311360), (4, 19655680), (5, 15724544), (8, 9827840), (10, 7862272), (11, 7147520), (16, 4913920), (20, 3931136), (22, 3573760), (32, 2456960), (40, 1965568), (44, 1786880), (55, 1429504), (64, 1228480), (80, 982784), (88, 893440), (110, 714752), (128, 614240), (160, 491392), (176, 446720), (220, 357376), (256, 307120), (320, 245696), (349, 225280), (352, 223360), (440, 178688), (512, 153560), (640, 122848), (698, 112640), (704, 111680), (880, 89344), (1024, 76780), (1280, 61424), (1396, 56320), (1408, 55840), (1745, 45056), (1760, 44672), (2048, 38390), (2560, 30712), (2792, 28160), (2816, 27920), (3490, 22528), (3520, 22336), (3839, 20480), (4096, 19195), (5120, 15356), (5584, 14080), (5632, 13960), (6980, 11264), (7040, 11168), (7678, 10240)]