15863860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 35481600

約数和(自身を除く): 19617740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 109, 190, 218, 380, 383, 436, 545, 766, 1090, 1532, 1915, 2071, 2180, 3830, 4142, 7277, 7660, 8284, 10355, 14554, 20710, 29108, 36385, 41420, 41747, 72770, 83494, 145540, 166988, 208735, 417470, 793193, 834940, 1586386, 3172772, 3965965, 7931930, 15863860]

約数ペア:

[(1, 15863860), (2, 7931930), (4, 3965965), (5, 3172772), (10, 1586386), (19, 834940), (20, 793193), (38, 417470), (76, 208735), (95, 166988), (109, 145540), (190, 83494), (218, 72770), (380, 41747), (383, 41420), (436, 36385), (545, 29108), (766, 20710), (1090, 14554), (1532, 10355), (1915, 8284), (2071, 7660), (2180, 7277), (3830, 4142)]