20707630

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 17783570

約数列:

[1, 2, 5, 10, 53, 89, 106, 178, 265, 439, 445, 530, 878, 890, 2195, 4390, 4717, 9434, 23267, 23585, 39071, 46534, 47170, 78142, 116335, 195355, 232670, 390710, 2070763, 4141526, 10353815, 20707630]

約数ペア:

[(1, 20707630), (2, 10353815), (5, 4141526), (10, 2070763), (53, 390710), (89, 232670), (106, 195355), (178, 116335), (265, 78142), (439, 47170), (445, 46534), (530, 39071), (878, 23585), (890, 23267), (2195, 9434), (4390, 4717)]