64721748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8467}}^1$

素因数の和:8501

約数の個数: 72

約数和(自身を含む): 189208992

約数和(自身を除く): 124487244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 3822, 7644, 8467, 16934, 25401, 33868, 50802, 59269, 101604, 110071, 118538, 177807, 220142, 237076, 330213, 355614, 414883, 440284, 660426, 711228, 770497, 829766, 1244649, 1320852, 1540994, 1659532, 2311491, 2489298, 3081988, 4622982, 4978596, 5393479, 9245964, 10786958, 16180437, 21573916, 32360874, 64721748]

約数ペア:

[(1, 64721748), (2, 32360874), (3, 21573916), (4, 16180437), (6, 10786958), (7, 9245964), (12, 5393479), (13, 4978596), (14, 4622982), (21, 3081988), (26, 2489298), (28, 2311491), (39, 1659532), (42, 1540994), (49, 1320852), (52, 1244649), (78, 829766), (84, 770497), (91, 711228), (98, 660426), (147, 440284), (156, 414883), (182, 355614), (196, 330213), (273, 237076), (294, 220142), (364, 177807), (546, 118538), (588, 110071), (637, 101604), (1092, 59269), (1274, 50802), (1911, 33868), (2548, 25401), (3822, 16934), (7644, 8467)]