257878320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{153499}}^1$

素因数の和:153522

約数の個数: 80

約数和(自身を含む): 913632000

約数和(自身を除く): 655753680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 153499, 306998, 460497, 613996, 767495, 920994, 1074493, 1227992, 1534990, 1841988, 2148986, 2302485, 2455984, 3069980, 3223479, 3683976, 4297972, 4604970, 5372465, 6139960, 6446958, 7367952, 8595944, 9209940, 10744930, 12279920, 12893916, 16117395, 17191888, 18419880, 21489860, 25787832, 32234790, 36839760, 42979720, 51575664, 64469580, 85959440, 128939160, 257878320]

約数ペア:

[(1, 257878320), (2, 128939160), (3, 85959440), (4, 64469580), (5, 51575664), (6, 42979720), (7, 36839760), (8, 32234790), (10, 25787832), (12, 21489860), (14, 18419880), (15, 17191888), (16, 16117395), (20, 12893916), (21, 12279920), (24, 10744930), (28, 9209940), (30, 8595944), (35, 7367952), (40, 6446958), (42, 6139960), (48, 5372465), (56, 4604970), (60, 4297972), (70, 3683976), (80, 3223479), (84, 3069980), (105, 2455984), (112, 2302485), (120, 2148986), (140, 1841988), (168, 1534990), (210, 1227992), (240, 1074493), (280, 920994), (336, 767495), (420, 613996), (560, 460497), (840, 306998), (1680, 153499)]