644283760

素因数分解:

$2^4\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{6997}}^1$

素因数の和:8161

約数の個数: 40

約数和(自身を含む): 1499475456

約数和(自身を除く): 855191696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1151, 2302, 4604, 5755, 6997, 9208, 11510, 13994, 18416, 23020, 27988, 34985, 46040, 55976, 69970, 92080, 111952, 139940, 279880, 559760, 8053547, 16107094, 32214188, 40267735, 64428376, 80535470, 128856752, 161070940, 322141880, 644283760]

約数ペア:

[(1, 644283760), (2, 322141880), (4, 161070940), (5, 128856752), (8, 80535470), (10, 64428376), (16, 40267735), (20, 32214188), (40, 16107094), (80, 8053547), (1151, 559760), (2302, 279880), (4604, 139940), (5755, 111952), (6997, 92080), (9208, 69970), (11510, 55976), (13994, 46040), (18416, 34985), (23020, 27988)]