977797975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{757}}^1$

素因数の和:857

約数の個数: 72

約数和(自身を含む): 1550116064

約数和(自身を除く): 572318089

約数列:

[1, 5, 7, 11, 25, 35, 55, 61, 77, 121, 175, 275, 305, 385, 427, 605, 671, 757, 847, 1525, 1925, 2135, 3025, 3355, 3785, 4235, 4697, 5299, 7381, 8327, 10675, 16775, 18925, 21175, 23485, 26495, 36905, 41635, 46177, 51667, 58289, 91597, 117425, 132475, 184525, 208175, 230885, 258335, 291445, 323239, 457985, 507947, 641179, 1154425, 1291675, 1457225, 1616195, 2289925, 2539735, 3205895, 3555629, 5587417, 8080975, 12698675, 16029475, 17778145, 27937085, 39111919, 88890725, 139685425, 195559595, 977797975]

約数ペア:

[(1, 977797975), (5, 195559595), (7, 139685425), (11, 88890725), (25, 39111919), (35, 27937085), (55, 17778145), (61, 16029475), (77, 12698675), (121, 8080975), (175, 5587417), (275, 3555629), (305, 3205895), (385, 2539735), (427, 2289925), (605, 1616195), (671, 1457225), (757, 1291675), (847, 1154425), (1525, 641179), (1925, 507947), (2135, 457985), (3025, 323239), (3355, 291445), (3785, 258335), (4235, 230885), (4697, 208175), (5299, 184525), (7381, 132475), (8327, 117425), (10675, 91597), (16775, 58289), (18925, 51667), (21175, 46177), (23485, 41635), (26495, 36905)]