81630972

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 211891680

約数和(自身を除く): 130260708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 109, 142, 213, 218, 284, 293, 327, 426, 436, 586, 639, 654, 852, 879, 981, 1172, 1278, 1308, 1758, 1962, 2556, 2637, 3516, 3924, 5274, 7739, 10548, 15478, 20803, 23217, 30956, 31937, 41606, 46434, 62409, 63874, 69651, 83212, 92868, 95811, 124818, 127748, 139302, 187227, 191622, 249636, 278604, 287433, 374454, 383244, 574866, 748908, 1149732, 2267527, 4535054, 6802581, 9070108, 13605162, 20407743, 27210324, 40815486, 81630972]

約数ペア:

[(1, 81630972), (2, 40815486), (3, 27210324), (4, 20407743), (6, 13605162), (9, 9070108), (12, 6802581), (18, 4535054), (36, 2267527), (71, 1149732), (109, 748908), (142, 574866), (213, 383244), (218, 374454), (284, 287433), (293, 278604), (327, 249636), (426, 191622), (436, 187227), (586, 139302), (639, 127748), (654, 124818), (852, 95811), (879, 92868), (981, 83212), (1172, 69651), (1278, 63874), (1308, 62409), (1758, 46434), (1962, 41606), (2556, 31937), (2637, 30956), (3516, 23217), (3924, 20803), (5274, 15478), (7739, 10548)]