181407520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{161971}}^1$

素因数の和:161993

約数の個数: 48

約数和(自身を含む): 489803328

約数和(自身を除く): 308395808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 161971, 323942, 647884, 809855, 1133797, 1295768, 1619710, 2267594, 2591536, 3239420, 4535188, 5183072, 5668985, 6478840, 9070376, 11337970, 12957680, 18140752, 22675940, 25915360, 36281504, 45351880, 90703760, 181407520]

約数ペア:

[(1, 181407520), (2, 90703760), (4, 45351880), (5, 36281504), (7, 25915360), (8, 22675940), (10, 18140752), (14, 12957680), (16, 11337970), (20, 9070376), (28, 6478840), (32, 5668985), (35, 5183072), (40, 4535188), (56, 3239420), (70, 2591536), (80, 2267594), (112, 1619710), (140, 1295768), (160, 1133797), (224, 809855), (280, 647884), (560, 323942), (1120, 161971)]