20205056

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 80

約数和(自身を含む): 44520960

約数和(自身を除く): 24315904

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 67, 76, 124, 128, 134, 152, 248, 256, 268, 304, 496, 512, 536, 589, 608, 992, 1072, 1178, 1216, 1273, 1984, 2077, 2144, 2356, 2432, 2546, 3968, 4154, 4288, 4712, 4864, 5092, 7936, 8308, 8576, 9424, 9728, 10184, 15872, 16616, 17152, 18848, 20368, 33232, 34304, 37696, 39463, 40736, 66464, 75392, 78926, 81472, 132928, 150784, 157852, 162944, 265856, 301568, 315704, 325888, 531712, 631408, 651776, 1063424, 1262816, 2525632, 5051264, 10102528, 20205056]

約数ペア:

[(1, 20205056), (2, 10102528), (4, 5051264), (8, 2525632), (16, 1262816), (19, 1063424), (31, 651776), (32, 631408), (38, 531712), (62, 325888), (64, 315704), (67, 301568), (76, 265856), (124, 162944), (128, 157852), (134, 150784), (152, 132928), (248, 81472), (256, 78926), (268, 75392), (304, 66464), (496, 40736), (512, 39463), (536, 37696), (589, 34304), (608, 33232), (992, 20368), (1072, 18848), (1178, 17152), (1216, 16616), (1273, 15872), (1984, 10184), (2077, 9728), (2144, 9424), (2356, 8576), (2432, 8308), (2546, 7936), (3968, 5092), (4154, 4864), (4288, 4712)]