9980821790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{2749}}^1$

素因数の和:3069

約数の個数: 64

約数和(自身を含む): 19209960000

約数和(自身を除く): 9229138210

約数列:

[1, 2, 5, 10, 19, 38, 95, 97, 190, 194, 197, 394, 485, 970, 985, 1843, 1970, 2749, 3686, 3743, 5498, 7486, 9215, 13745, 18430, 18715, 19109, 27490, 37430, 38218, 52231, 95545, 104462, 191090, 261155, 266653, 363071, 522310, 533306, 541553, 726142, 1083106, 1333265, 1815355, 2666530, 2707765, 3630710, 5066407, 5415530, 10132814, 10289507, 20579014, 25332035, 50664070, 51447535, 52530641, 102895070, 105061282, 262653205, 525306410, 998082179, 1996164358, 4990410895, 9980821790]

約数ペア:

[(1, 9980821790), (2, 4990410895), (5, 1996164358), (10, 998082179), (19, 525306410), (38, 262653205), (95, 105061282), (97, 102895070), (190, 52530641), (194, 51447535), (197, 50664070), (394, 25332035), (485, 20579014), (970, 10289507), (985, 10132814), (1843, 5415530), (1970, 5066407), (2749, 3630710), (3686, 2707765), (3743, 2666530), (5498, 1815355), (7486, 1333265), (9215, 1083106), (13745, 726142), (18430, 541553), (18715, 533306), (19109, 522310), (27490, 363071), (37430, 266653), (38218, 261155), (52231, 191090), (95545, 104462)]