1644885680

素因数分解:

$2^4\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{18743}}^1$

素因数の和:19853

約数の個数: 40

約数和(自身を含む): 3828049632

約数和(自身を除く): 2183163952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1097, 2194, 4388, 5485, 8776, 10970, 17552, 18743, 21940, 37486, 43880, 74972, 87760, 93715, 149944, 187430, 299888, 374860, 749720, 1499440, 20561071, 41122142, 82244284, 102805355, 164488568, 205610710, 328977136, 411221420, 822442840, 1644885680]

約数ペア:

[(1, 1644885680), (2, 822442840), (4, 411221420), (5, 328977136), (8, 205610710), (10, 164488568), (16, 102805355), (20, 82244284), (40, 41122142), (80, 20561071), (1097, 1499440), (2194, 749720), (4388, 374860), (5485, 299888), (8776, 187430), (10970, 149944), (17552, 93715), (18743, 87760), (21940, 74972), (37486, 43880)]