8245120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1023

約数の個数: 64

約数和(自身を含む): 21248640

約数和(自身を除く): 13003520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 991, 1040, 1664, 1982, 2080, 3964, 4160, 4955, 7928, 8320, 9910, 12883, 15856, 19820, 25766, 31712, 39640, 51532, 63424, 64415, 79280, 103064, 126848, 128830, 158560, 206128, 257660, 317120, 412256, 515320, 634240, 824512, 1030640, 1649024, 2061280, 4122560, 8245120]

約数ペア:

[(1, 8245120), (2, 4122560), (4, 2061280), (5, 1649024), (8, 1030640), (10, 824512), (13, 634240), (16, 515320), (20, 412256), (26, 317120), (32, 257660), (40, 206128), (52, 158560), (64, 128830), (65, 126848), (80, 103064), (104, 79280), (128, 64415), (130, 63424), (160, 51532), (208, 39640), (260, 31712), (320, 25766), (416, 19820), (520, 15856), (640, 12883), (832, 9910), (991, 8320), (1040, 7928), (1664, 4955), (1982, 4160), (2080, 3964)]