218999280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{912497}}^1$

素因数の和:912513

約数の個数: 40

約数和(自身を含む): 678898512

約数和(自身を除く): 459899232

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 912497, 1824994, 2737491, 3649988, 4562485, 5474982, 7299976, 9124970, 10949964, 13687455, 14599952, 18249940, 21899928, 27374910, 36499880, 43799856, 54749820, 72999760, 109499640, 218999280]

約数ペア:

[(1, 218999280), (2, 109499640), (3, 72999760), (4, 54749820), (5, 43799856), (6, 36499880), (8, 27374910), (10, 21899928), (12, 18249940), (15, 14599952), (16, 13687455), (20, 10949964), (24, 9124970), (30, 7299976), (40, 5474982), (48, 4562485), (60, 3649988), (80, 2737491), (120, 1824994), (240, 912497)]