678349870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:681

約数の個数: 64

約数和(自身を含む): 1358622720

約数和(自身を除く): 680272850

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 166, 191, 382, 389, 415, 778, 830, 913, 955, 1826, 1910, 1945, 2101, 3890, 4202, 4279, 4565, 8558, 9130, 10505, 15853, 21010, 21395, 31706, 32287, 42790, 64574, 74299, 79265, 148598, 158530, 161435, 174383, 322870, 348766, 355157, 371495, 710314, 742990, 817289, 871915, 1634578, 1743830, 1775785, 3551570, 4086445, 6166817, 8172890, 12333634, 30834085, 61668170, 67834987, 135669974, 339174935, 678349870]

約数ペア:

[(1, 678349870), (2, 339174935), (5, 135669974), (10, 67834987), (11, 61668170), (22, 30834085), (55, 12333634), (83, 8172890), (110, 6166817), (166, 4086445), (191, 3551570), (382, 1775785), (389, 1743830), (415, 1634578), (778, 871915), (830, 817289), (913, 742990), (955, 710314), (1826, 371495), (1910, 355157), (1945, 348766), (2101, 322870), (3890, 174383), (4202, 161435), (4279, 158530), (4565, 148598), (8558, 79265), (9130, 74299), (10505, 64574), (15853, 42790), (21010, 32287), (21395, 31706)]