2912010220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{129193}}^1$

素因数の和:129239

約数の個数: 72

約数和(自身を含む): 7422970464

約数和(自身を除く): 4510960244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 129193, 258386, 516772, 645965, 904351, 1291930, 1808702, 2583860, 2971439, 3617404, 4521755, 5942878, 6330457, 9043510, 11885756, 12660914, 14857195, 18087020, 20800073, 25321828, 29714390, 31652285, 41600146, 59428780, 63304570, 83200292, 104000365, 126609140, 145600511, 208000730, 291201022, 416001460, 582402044, 728002555, 1456005110, 2912010220]

約数ペア:

[(1, 2912010220), (2, 1456005110), (4, 728002555), (5, 582402044), (7, 416001460), (10, 291201022), (14, 208000730), (20, 145600511), (23, 126609140), (28, 104000365), (35, 83200292), (46, 63304570), (49, 59428780), (70, 41600146), (92, 31652285), (98, 29714390), (115, 25321828), (140, 20800073), (161, 18087020), (196, 14857195), (230, 12660914), (245, 11885756), (322, 9043510), (460, 6330457), (490, 5942878), (644, 4521755), (805, 3617404), (980, 2971439), (1127, 2583860), (1610, 1808702), (2254, 1291930), (3220, 904351), (4508, 645965), (5635, 516772), (11270, 258386), (22540, 129193)]