215367760

素因数分解:

$2^4\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{1669}}^1$

素因数の和:3295

約数の個数: 40

約数和(自身を含む): 501340680

約数和(自身を除く): 285972920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1613, 1669, 3226, 3338, 6452, 6676, 8065, 8345, 12904, 13352, 16130, 16690, 25808, 26704, 32260, 33380, 64520, 66760, 129040, 133520, 2692097, 5384194, 10768388, 13460485, 21536776, 26920970, 43073552, 53841940, 107683880, 215367760]

約数ペア:

[(1, 215367760), (2, 107683880), (4, 53841940), (5, 43073552), (8, 26920970), (10, 21536776), (16, 13460485), (20, 10768388), (40, 5384194), (80, 2692097), (1613, 133520), (1669, 129040), (3226, 66760), (3338, 64520), (6452, 33380), (6676, 32260), (8065, 26704), (8345, 25808), (12904, 16690), (13352, 16130)]