8020480

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1$

素因数の和:277

約数の個数: 80

約数和(自身を含む): 20795544

約数和(自身を除く): 12775064

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, 256, 260, 320, 416, 482, 512, 520, 640, 832, 964, 1040, 1205, 1280, 1664, 1928, 2080, 2410, 2560, 3133, 3328, 3856, 4160, 4820, 6266, 6656, 7712, 8320, 9640, 12532, 15424, 15665, 16640, 19280, 25064, 30848, 31330, 33280, 38560, 50128, 61696, 62660, 77120, 100256, 123392, 125320, 154240, 200512, 250640, 308480, 401024, 501280, 616960, 802048, 1002560, 1604096, 2005120, 4010240, 8020480]

約数ペア:

[(1, 8020480), (2, 4010240), (4, 2005120), (5, 1604096), (8, 1002560), (10, 802048), (13, 616960), (16, 501280), (20, 401024), (26, 308480), (32, 250640), (40, 200512), (52, 154240), (64, 125320), (65, 123392), (80, 100256), (104, 77120), (128, 62660), (130, 61696), (160, 50128), (208, 38560), (241, 33280), (256, 31330), (260, 30848), (320, 25064), (416, 19280), (482, 16640), (512, 15665), (520, 15424), (640, 12532), (832, 9640), (964, 8320), (1040, 7712), (1205, 6656), (1280, 6266), (1664, 4820), (1928, 4160), (2080, 3856), (2410, 3328), (2560, 3133)]