278422380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{515597}}^1$

素因数の和:515615

約数の個数: 48

約数和(自身を含む): 866204640

約数和(自身を除く): 587782260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 515597, 1031194, 1546791, 2062388, 2577985, 3093582, 4640373, 5155970, 6187164, 7733955, 9280746, 10311940, 13921119, 15467910, 18561492, 23201865, 27842238, 30935820, 46403730, 55684476, 69605595, 92807460, 139211190, 278422380]

約数ペア:

[(1, 278422380), (2, 139211190), (3, 92807460), (4, 69605595), (5, 55684476), (6, 46403730), (9, 30935820), (10, 27842238), (12, 23201865), (15, 18561492), (18, 15467910), (20, 13921119), (27, 10311940), (30, 9280746), (36, 7733955), (45, 6187164), (54, 5155970), (60, 4640373), (90, 3093582), (108, 2577985), (135, 2062388), (180, 1546791), (270, 1031194), (540, 515597)]