16728440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 22669960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 127, 148, 178, 185, 254, 296, 356, 370, 445, 508, 635, 712, 740, 890, 1016, 1270, 1480, 1780, 2540, 3293, 3560, 4699, 5080, 6586, 9398, 11303, 13172, 16465, 18796, 22606, 23495, 26344, 32930, 37592, 45212, 46990, 56515, 65860, 90424, 93980, 113030, 131720, 187960, 226060, 418211, 452120, 836422, 1672844, 2091055, 3345688, 4182110, 8364220, 16728440]

約数ペア:

[(1, 16728440), (2, 8364220), (4, 4182110), (5, 3345688), (8, 2091055), (10, 1672844), (20, 836422), (37, 452120), (40, 418211), (74, 226060), (89, 187960), (127, 131720), (148, 113030), (178, 93980), (185, 90424), (254, 65860), (296, 56515), (356, 46990), (370, 45212), (445, 37592), (508, 32930), (635, 26344), (712, 23495), (740, 22606), (890, 18796), (1016, 16465), (1270, 13172), (1480, 11303), (1780, 9398), (2540, 6586), (3293, 5080), (3560, 4699)]