255604480

素因数分解:

$2^8\times 5^1\times {\mathrm{397}}^1\times {\mathrm{503}}^1$

素因数の和:921

約数の個数: 72

約数和(自身を含む): 615015072

約数和(自身を除く): 359410592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 397, 503, 640, 794, 1006, 1280, 1588, 1985, 2012, 2515, 3176, 3970, 4024, 5030, 6352, 7940, 8048, 10060, 12704, 15880, 16096, 20120, 25408, 31760, 32192, 40240, 50816, 63520, 64384, 80480, 101632, 127040, 128768, 160960, 199691, 254080, 321920, 399382, 508160, 643840, 798764, 998455, 1597528, 1996910, 3195056, 3993820, 6390112, 7987640, 12780224, 15975280, 25560448, 31950560, 51120896, 63901120, 127802240, 255604480]

約数ペア:

[(1, 255604480), (2, 127802240), (4, 63901120), (5, 51120896), (8, 31950560), (10, 25560448), (16, 15975280), (20, 12780224), (32, 7987640), (40, 6390112), (64, 3993820), (80, 3195056), (128, 1996910), (160, 1597528), (256, 998455), (320, 798764), (397, 643840), (503, 508160), (640, 399382), (794, 321920), (1006, 254080), (1280, 199691), (1588, 160960), (1985, 128768), (2012, 127040), (2515, 101632), (3176, 80480), (3970, 64384), (4024, 63520), (5030, 50816), (6352, 40240), (7940, 32192), (8048, 31760), (10060, 25408), (12704, 20120), (15880, 16096)]