20212560010

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1\times {\mathrm{491}}^1$

素因数の和:1171

約数の個数: 64

約数和(自身を含む): 37339729920

約数和(自身を除く): 17127169910

約数列:

[1, 2, 5, 10, 79, 107, 158, 214, 395, 487, 491, 535, 790, 974, 982, 1070, 2435, 2455, 4870, 4910, 8453, 16906, 38473, 38789, 42265, 52109, 52537, 76946, 77578, 84530, 104218, 105074, 192365, 193945, 239117, 260545, 262685, 384730, 387890, 478234, 521090, 525370, 1195585, 2391170, 4116611, 4150423, 8233222, 8300846, 18890243, 20583055, 20752115, 25585519, 37780486, 41166110, 41504230, 51171038, 94451215, 127927595, 188902430, 255855190, 2021256001, 4042512002, 10106280005, 20212560010]

約数ペア:

[(1, 20212560010), (2, 10106280005), (5, 4042512002), (10, 2021256001), (79, 255855190), (107, 188902430), (158, 127927595), (214, 94451215), (395, 51171038), (487, 41504230), (491, 41166110), (535, 37780486), (790, 25585519), (974, 20752115), (982, 20583055), (1070, 18890243), (2435, 8300846), (2455, 8233222), (4870, 4150423), (4910, 4116611), (8453, 2391170), (16906, 1195585), (38473, 525370), (38789, 521090), (42265, 478234), (52109, 387890), (52537, 384730), (76946, 262685), (77578, 260545), (84530, 239117), (104218, 193945), (105074, 192365)]