20363510

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 20693770

約数列:

[1, 2, 5, 10, 23, 29, 43, 46, 58, 71, 86, 115, 142, 145, 215, 230, 290, 355, 430, 667, 710, 989, 1247, 1334, 1633, 1978, 2059, 2494, 3053, 3266, 3335, 4118, 4945, 6106, 6235, 6670, 8165, 9890, 10295, 12470, 15265, 16330, 20590, 28681, 30530, 47357, 57362, 70219, 88537, 94714, 140438, 143405, 177074, 236785, 286810, 351095, 442685, 473570, 702190, 885370, 2036351, 4072702, 10181755, 20363510]

約数ペア:

[(1, 20363510), (2, 10181755), (5, 4072702), (10, 2036351), (23, 885370), (29, 702190), (43, 473570), (46, 442685), (58, 351095), (71, 286810), (86, 236785), (115, 177074), (142, 143405), (145, 140438), (215, 94714), (230, 88537), (290, 70219), (355, 57362), (430, 47357), (667, 30530), (710, 28681), (989, 20590), (1247, 16330), (1334, 15265), (1633, 12470), (1978, 10295), (2059, 9890), (2494, 8165), (3053, 6670), (3266, 6235), (3335, 6106), (4118, 4945)]