20190780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4877}}^1$

素因数の和:4915

約数の個数: 72

約数和(自身を含む): 63921312

約数和(自身を除く): 43730532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4877, 9754, 14631, 19508, 24385, 29262, 43893, 48770, 58524, 73155, 87786, 97540, 112171, 146310, 175572, 219465, 224342, 292620, 336513, 438930, 448684, 560855, 673026, 877860, 1009539, 1121710, 1346052, 1682565, 2019078, 2243420, 3365130, 4038156, 5047695, 6730260, 10095390, 20190780]

約数ペア:

[(1, 20190780), (2, 10095390), (3, 6730260), (4, 5047695), (5, 4038156), (6, 3365130), (9, 2243420), (10, 2019078), (12, 1682565), (15, 1346052), (18, 1121710), (20, 1009539), (23, 877860), (30, 673026), (36, 560855), (45, 448684), (46, 438930), (60, 336513), (69, 292620), (90, 224342), (92, 219465), (115, 175572), (138, 146310), (180, 112171), (207, 97540), (230, 87786), (276, 73155), (345, 58524), (414, 48770), (460, 43893), (690, 29262), (828, 24385), (1035, 19508), (1380, 14631), (2070, 9754), (4140, 4877)]