20161567256

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{659}}^1\times {\mathrm{883}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 39067142400

約数和(自身を除く): 18905575144

約数列:

[1, 2, 4, 8, 61, 71, 122, 142, 244, 284, 488, 568, 659, 883, 1318, 1766, 2636, 3532, 4331, 5272, 7064, 8662, 17324, 34648, 40199, 46789, 53863, 62693, 80398, 93578, 107726, 125386, 160796, 187156, 215452, 250772, 321592, 374312, 430904, 501544, 581897, 1163794, 2327588, 2854129, 3824273, 4655176, 5708258, 7648546, 11416516, 15297092, 22833032, 30594184, 35495717, 41314687, 70991434, 82629374, 141982868, 165258748, 283965736, 330517496, 2520195907, 5040391814, 10080783628, 20161567256]

約数ペア:

[(1, 20161567256), (2, 10080783628), (4, 5040391814), (8, 2520195907), (61, 330517496), (71, 283965736), (122, 165258748), (142, 141982868), (244, 82629374), (284, 70991434), (488, 41314687), (568, 35495717), (659, 30594184), (883, 22833032), (1318, 15297092), (1766, 11416516), (2636, 7648546), (3532, 5708258), (4331, 4655176), (5272, 3824273), (7064, 2854129), (8662, 2327588), (17324, 1163794), (34648, 581897), (40199, 501544), (46789, 430904), (53863, 374312), (62693, 321592), (80398, 250772), (93578, 215452), (107726, 187156), (125386, 160796)]