66972220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1847}}^1$

素因数の和:1907

約数の個数: 72

約数和(自身を含む): 168116256

約数和(自身を除く): 101144036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 1847, 2590, 3626, 3694, 5180, 7252, 7388, 9065, 9235, 12929, 18130, 18470, 25858, 36260, 36940, 51716, 64645, 68339, 90503, 129290, 136678, 181006, 258580, 273356, 341695, 362012, 452515, 478373, 683390, 905030, 956746, 1366780, 1810060, 1913492, 2391865, 3348611, 4783730, 6697222, 9567460, 13394444, 16743055, 33486110, 66972220]

約数ペア:

[(1, 66972220), (2, 33486110), (4, 16743055), (5, 13394444), (7, 9567460), (10, 6697222), (14, 4783730), (20, 3348611), (28, 2391865), (35, 1913492), (37, 1810060), (49, 1366780), (70, 956746), (74, 905030), (98, 683390), (140, 478373), (148, 452515), (185, 362012), (196, 341695), (245, 273356), (259, 258580), (370, 181006), (490, 136678), (518, 129290), (740, 90503), (980, 68339), (1036, 64645), (1295, 51716), (1813, 36940), (1847, 36260), (2590, 25858), (3626, 18470), (3694, 18130), (5180, 12929), (7252, 9235), (7388, 9065)]