31563320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 73681920

約数和(自身を除く): 42118600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 103, 163, 188, 206, 235, 326, 376, 412, 470, 515, 652, 815, 824, 940, 1030, 1304, 1630, 1880, 2060, 3260, 4120, 4841, 6520, 7661, 9682, 15322, 16789, 19364, 24205, 30644, 33578, 38305, 38728, 48410, 61288, 67156, 76610, 83945, 96820, 134312, 153220, 167890, 193640, 306440, 335780, 671560, 789083, 1578166, 3156332, 3945415, 6312664, 7890830, 15781660, 31563320]

約数ペア:

[(1, 31563320), (2, 15781660), (4, 7890830), (5, 6312664), (8, 3945415), (10, 3156332), (20, 1578166), (40, 789083), (47, 671560), (94, 335780), (103, 306440), (163, 193640), (188, 167890), (206, 153220), (235, 134312), (326, 96820), (376, 83945), (412, 76610), (470, 67156), (515, 61288), (652, 48410), (815, 38728), (824, 38305), (940, 33578), (1030, 30644), (1304, 24205), (1630, 19364), (1880, 16789), (2060, 15322), (3260, 9682), (4120, 7661), (4841, 6520)]