66895640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1381}}^1$

素因数の和:1572

約数の個数: 64

約数和(自身を含む): 173136960

約数和(自身を除く): 106241320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 692, 865, 1211, 1381, 1384, 1730, 2422, 2762, 3460, 4844, 5524, 6055, 6905, 6920, 9667, 9688, 11048, 12110, 13810, 19334, 24220, 27620, 38668, 48335, 48440, 55240, 77336, 96670, 193340, 238913, 386680, 477826, 955652, 1194565, 1672391, 1911304, 2389130, 3344782, 4778260, 6689564, 8361955, 9556520, 13379128, 16723910, 33447820, 66895640]

約数ペア:

[(1, 66895640), (2, 33447820), (4, 16723910), (5, 13379128), (7, 9556520), (8, 8361955), (10, 6689564), (14, 4778260), (20, 3344782), (28, 2389130), (35, 1911304), (40, 1672391), (56, 1194565), (70, 955652), (140, 477826), (173, 386680), (280, 238913), (346, 193340), (692, 96670), (865, 77336), (1211, 55240), (1381, 48440), (1384, 48335), (1730, 38668), (2422, 27620), (2762, 24220), (3460, 19334), (4844, 13810), (5524, 12110), (6055, 11048), (6905, 9688), (6920, 9667)]