81825380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44959}}^1$

素因数の和:44988

約数の個数: 48

約数和(自身を含む): 211491840

約数和(自身を除く): 129666460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44959, 89918, 179836, 224795, 314713, 449590, 584467, 629426, 899180, 1168934, 1258852, 1573565, 2337868, 2922335, 3147130, 4091269, 5844670, 6294260, 8182538, 11689340, 16365076, 20456345, 40912690, 81825380]

約数ペア:

[(1, 81825380), (2, 40912690), (4, 20456345), (5, 16365076), (7, 11689340), (10, 8182538), (13, 6294260), (14, 5844670), (20, 4091269), (26, 3147130), (28, 2922335), (35, 2337868), (52, 1573565), (65, 1258852), (70, 1168934), (91, 899180), (130, 629426), (140, 584467), (182, 449590), (260, 314713), (364, 224795), (455, 179836), (910, 89918), (1820, 44959)]