81232580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28403}}^1$

素因数の和:28436

約数の個数: 48

約数和(自身を含む): 200418624

約数和(自身を除く): 119186044

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 28403, 56806, 113612, 142015, 284030, 312433, 369239, 568060, 624866, 738478, 1249732, 1476956, 1562165, 1846195, 3124330, 3692390, 4061629, 6248660, 7384780, 8123258, 16246516, 20308145, 40616290, 81232580]

約数ペア:

[(1, 81232580), (2, 40616290), (4, 20308145), (5, 16246516), (10, 8123258), (11, 7384780), (13, 6248660), (20, 4061629), (22, 3692390), (26, 3124330), (44, 1846195), (52, 1562165), (55, 1476956), (65, 1249732), (110, 738478), (130, 624866), (143, 568060), (220, 369239), (260, 312433), (286, 284030), (572, 142015), (715, 113612), (1430, 56806), (2860, 28403)]