28706886

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:387

約数の個数: 80

約数和(自身を含む): 71107344

約数和(自身を除く): 42400458

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 81, 86, 117, 129, 162, 234, 258, 317, 351, 387, 559, 634, 702, 774, 951, 1053, 1118, 1161, 1677, 1902, 2106, 2322, 2853, 3354, 3483, 4121, 5031, 5706, 6966, 8242, 8559, 10062, 12363, 13631, 15093, 17118, 24726, 25677, 27262, 30186, 37089, 40893, 45279, 51354, 74178, 81786, 90558, 111267, 122679, 177203, 222534, 245358, 333801, 354406, 368037, 531609, 667602, 736074, 1063218, 1104111, 1594827, 2208222, 3189654, 4784481, 9568962, 14353443, 28706886]

約数ペア:

[(1, 28706886), (2, 14353443), (3, 9568962), (6, 4784481), (9, 3189654), (13, 2208222), (18, 1594827), (26, 1104111), (27, 1063218), (39, 736074), (43, 667602), (54, 531609), (78, 368037), (81, 354406), (86, 333801), (117, 245358), (129, 222534), (162, 177203), (234, 122679), (258, 111267), (317, 90558), (351, 81786), (387, 74178), (559, 51354), (634, 45279), (702, 40893), (774, 37089), (951, 30186), (1053, 27262), (1118, 25677), (1161, 24726), (1677, 17118), (1902, 15093), (2106, 13631), (2322, 12363), (2853, 10062), (3354, 8559), (3483, 8242), (4121, 6966), (5031, 5706)]