2005120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 5183640

約数和(自身を除く): 3178520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 241, 260, 320, 416, 482, 520, 640, 832, 964, 1040, 1205, 1664, 1928, 2080, 2410, 3133, 3856, 4160, 4820, 6266, 7712, 8320, 9640, 12532, 15424, 15665, 19280, 25064, 30848, 31330, 38560, 50128, 62660, 77120, 100256, 125320, 154240, 200512, 250640, 401024, 501280, 1002560, 2005120]

約数ペア:

[(1, 2005120), (2, 1002560), (4, 501280), (5, 401024), (8, 250640), (10, 200512), (13, 154240), (16, 125320), (20, 100256), (26, 77120), (32, 62660), (40, 50128), (52, 38560), (64, 31330), (65, 30848), (80, 25064), (104, 19280), (128, 15665), (130, 15424), (160, 12532), (208, 9640), (241, 8320), (260, 7712), (320, 6266), (416, 4820), (482, 4160), (520, 3856), (640, 3133), (832, 2410), (964, 2080), (1040, 1928), (1205, 1664)]