501280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 1280664

約数和(自身を除く): 779384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 241, 260, 416, 482, 520, 964, 1040, 1205, 1928, 2080, 2410, 3133, 3856, 4820, 6266, 7712, 9640, 12532, 15665, 19280, 25064, 31330, 38560, 50128, 62660, 100256, 125320, 250640, 501280]

約数ペア:

[(1, 501280), (2, 250640), (4, 125320), (5, 100256), (8, 62660), (10, 50128), (13, 38560), (16, 31330), (20, 25064), (26, 19280), (32, 15665), (40, 12532), (52, 9640), (65, 7712), (80, 6266), (104, 4820), (130, 3856), (160, 3133), (208, 2410), (241, 2080), (260, 1928), (416, 1205), (482, 1040), (520, 964)]