64516100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:773

約数の個数: 72

約数和(自身を含む): 154677600

約数和(自身を除く): 90161500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 110, 178, 220, 275, 356, 445, 550, 659, 890, 979, 1100, 1318, 1780, 1958, 2225, 2636, 3295, 3916, 4450, 4895, 6590, 7249, 8900, 9790, 13180, 14498, 16475, 19580, 24475, 28996, 32950, 36245, 48950, 58651, 65900, 72490, 97900, 117302, 144980, 181225, 234604, 293255, 362450, 586510, 645161, 724900, 1173020, 1290322, 1466275, 2580644, 2932550, 3225805, 5865100, 6451610, 12903220, 16129025, 32258050, 64516100]

約数ペア:

[(1, 64516100), (2, 32258050), (4, 16129025), (5, 12903220), (10, 6451610), (11, 5865100), (20, 3225805), (22, 2932550), (25, 2580644), (44, 1466275), (50, 1290322), (55, 1173020), (89, 724900), (100, 645161), (110, 586510), (178, 362450), (220, 293255), (275, 234604), (356, 181225), (445, 144980), (550, 117302), (659, 97900), (890, 72490), (979, 65900), (1100, 58651), (1318, 48950), (1780, 36245), (1958, 32950), (2225, 28996), (2636, 24475), (3295, 19580), (3916, 16475), (4450, 14498), (4895, 13180), (6590, 9790), (7249, 8900)]