649968225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:395

約数の個数: 72

約数和(自身を含む): 1154830848

約数和(自身を除く): 504862623

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 157, 191, 255, 289, 425, 471, 573, 785, 867, 955, 1275, 1445, 2355, 2669, 2865, 3247, 3925, 4335, 4775, 7225, 8007, 9741, 11775, 13345, 14325, 16235, 21675, 29987, 40035, 45373, 48705, 55199, 66725, 81175, 89961, 136119, 149935, 165597, 200175, 226865, 243525, 275995, 449805, 509779, 680595, 749675, 827985, 1134325, 1379975, 1529337, 2249025, 2548895, 3402975, 4139925, 7646685, 8666243, 12744475, 25998729, 38233425, 43331215, 129993645, 216656075, 649968225]

約数ペア:

[(1, 649968225), (3, 216656075), (5, 129993645), (15, 43331215), (17, 38233425), (25, 25998729), (51, 12744475), (75, 8666243), (85, 7646685), (157, 4139925), (191, 3402975), (255, 2548895), (289, 2249025), (425, 1529337), (471, 1379975), (573, 1134325), (785, 827985), (867, 749675), (955, 680595), (1275, 509779), (1445, 449805), (2355, 275995), (2669, 243525), (2865, 226865), (3247, 200175), (3925, 165597), (4335, 149935), (4775, 136119), (7225, 89961), (8007, 81175), (9741, 66725), (11775, 55199), (13345, 48705), (14325, 45373), (16235, 40035), (21675, 29987)]