19689340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2887}}^1$

素因数の和:2938

約数の個数: 48

約数和(自身を含む): 46577664

約数和(自身を除く): 26888324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 2887, 3410, 5774, 6820, 11548, 14435, 28870, 31757, 57740, 63514, 89497, 127028, 158785, 178994, 317570, 357988, 447485, 635140, 894970, 984467, 1789940, 1968934, 3937868, 4922335, 9844670, 19689340]

約数ペア:

[(1, 19689340), (2, 9844670), (4, 4922335), (5, 3937868), (10, 1968934), (11, 1789940), (20, 984467), (22, 894970), (31, 635140), (44, 447485), (55, 357988), (62, 317570), (110, 178994), (124, 158785), (155, 127028), (220, 89497), (310, 63514), (341, 57740), (620, 31757), (682, 28870), (1364, 14435), (1705, 11548), (2887, 6820), (3410, 5774)]