20021680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35753}}^1$

素因数の和:35773

約数の個数: 40

約数和(自身を含む): 53201952

約数和(自身を除く): 33180272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35753, 71506, 143012, 178765, 250271, 286024, 357530, 500542, 572048, 715060, 1001084, 1251355, 1430120, 2002168, 2502710, 2860240, 4004336, 5005420, 10010840, 20021680]

約数ペア:

[(1, 20021680), (2, 10010840), (4, 5005420), (5, 4004336), (7, 2860240), (8, 2502710), (10, 2002168), (14, 1430120), (16, 1251355), (20, 1001084), (28, 715060), (35, 572048), (40, 500542), (56, 357530), (70, 286024), (80, 250271), (112, 178765), (140, 143012), (280, 71506), (560, 35753)]