1030640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{991}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 2583168

約数和(自身を除く): 1552528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 991, 1040, 1982, 3964, 4955, 7928, 9910, 12883, 15856, 19820, 25766, 39640, 51532, 64415, 79280, 103064, 128830, 206128, 257660, 515320, 1030640]

約数ペア:

[(1, 1030640), (2, 515320), (4, 257660), (5, 206128), (8, 128830), (10, 103064), (13, 79280), (16, 64415), (20, 51532), (26, 39640), (40, 25766), (52, 19820), (65, 15856), (80, 12883), (104, 9910), (130, 7928), (208, 4955), (260, 3964), (520, 1982), (991, 1040)]