399479470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1471}}^1\times {\mathrm{2089}}^1$

素因数の和:3580

約数の個数: 32

約数和(自身を含む): 775272960

約数和(自身を除く): 375793490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1471, 2089, 2942, 4178, 7355, 10445, 14710, 19123, 20890, 27157, 38246, 54314, 95615, 135785, 191230, 271570, 3072919, 6145838, 15364595, 30729190, 39947947, 79895894, 199739735, 399479470]

約数ペア:

[(1, 399479470), (2, 199739735), (5, 79895894), (10, 39947947), (13, 30729190), (26, 15364595), (65, 6145838), (130, 3072919), (1471, 271570), (2089, 191230), (2942, 135785), (4178, 95615), (7355, 54314), (10445, 38246), (14710, 27157), (19123, 20890)]