280185020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{2741}}^1$

素因数の和:3038

約数の個数: 48

約数和(自身を含む): 621885600

約数和(自身を除く): 341700580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 380, 538, 1076, 1345, 2690, 2741, 5111, 5380, 5482, 10222, 10964, 13705, 20444, 25555, 27410, 51110, 52079, 54820, 102220, 104158, 208316, 260395, 520790, 737329, 1041580, 1474658, 2949316, 3686645, 7373290, 14009251, 14746580, 28018502, 56037004, 70046255, 140092510, 280185020]

約数ペア:

[(1, 280185020), (2, 140092510), (4, 70046255), (5, 56037004), (10, 28018502), (19, 14746580), (20, 14009251), (38, 7373290), (76, 3686645), (95, 2949316), (190, 1474658), (269, 1041580), (380, 737329), (538, 520790), (1076, 260395), (1345, 208316), (2690, 104158), (2741, 102220), (5111, 54820), (5380, 52079), (5482, 51110), (10222, 27410), (10964, 25555), (13705, 20444)]