18677890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 42467328

約数和(自身を除く): 23789438

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 127, 154, 191, 254, 382, 385, 635, 770, 889, 955, 1270, 1337, 1397, 1778, 1910, 2101, 2674, 2794, 4202, 4445, 6685, 6985, 8890, 9779, 10505, 13370, 13970, 14707, 19558, 21010, 24257, 29414, 48514, 48895, 73535, 97790, 121285, 147070, 169799, 242570, 266827, 339598, 533654, 848995, 1334135, 1697990, 1867789, 2668270, 3735578, 9338945, 18677890]

約数ペア:

[(1, 18677890), (2, 9338945), (5, 3735578), (7, 2668270), (10, 1867789), (11, 1697990), (14, 1334135), (22, 848995), (35, 533654), (55, 339598), (70, 266827), (77, 242570), (110, 169799), (127, 147070), (154, 121285), (191, 97790), (254, 73535), (382, 48895), (385, 48514), (635, 29414), (770, 24257), (889, 21010), (955, 19558), (1270, 14707), (1337, 13970), (1397, 13370), (1778, 10505), (1910, 9779), (2101, 8890), (2674, 6985), (2794, 6685), (4202, 4445)]