16511620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 36369648

約数和(自身を除く): 19858028

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 212, 265, 370, 421, 530, 740, 842, 1060, 1684, 1961, 2105, 3922, 4210, 7844, 8420, 9805, 15577, 19610, 22313, 31154, 39220, 44626, 62308, 77885, 89252, 111565, 155770, 223130, 311540, 446260, 825581, 1651162, 3302324, 4127905, 8255810, 16511620]

約数ペア:

[(1, 16511620), (2, 8255810), (4, 4127905), (5, 3302324), (10, 1651162), (20, 825581), (37, 446260), (53, 311540), (74, 223130), (106, 155770), (148, 111565), (185, 89252), (212, 77885), (265, 62308), (370, 44626), (421, 39220), (530, 31154), (740, 22313), (842, 19610), (1060, 15577), (1684, 9805), (1961, 8420), (2105, 7844), (3922, 4210)]