16403860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 37884672

約数和(自身を除く): 21480812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 431, 692, 862, 865, 1724, 1730, 1903, 2155, 3460, 3806, 4310, 4741, 7612, 8620, 9482, 9515, 18964, 19030, 23705, 38060, 47410, 74563, 94820, 149126, 298252, 372815, 745630, 820193, 1491260, 1640386, 3280772, 4100965, 8201930, 16403860]

約数ペア:

[(1, 16403860), (2, 8201930), (4, 4100965), (5, 3280772), (10, 1640386), (11, 1491260), (20, 820193), (22, 745630), (44, 372815), (55, 298252), (110, 149126), (173, 94820), (220, 74563), (346, 47410), (431, 38060), (692, 23705), (862, 19030), (865, 18964), (1724, 9515), (1730, 9482), (1903, 8620), (2155, 7612), (3460, 4741), (3806, 4310)]