16135720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 39171600

約数和(自身を除く): 23035880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 389, 488, 610, 680, 778, 1037, 1220, 1556, 1945, 2074, 2440, 3112, 3890, 4148, 5185, 6613, 7780, 8296, 10370, 13226, 15560, 20740, 23729, 26452, 33065, 41480, 47458, 52904, 66130, 94916, 118645, 132260, 189832, 237290, 264520, 403393, 474580, 806786, 949160, 1613572, 2016965, 3227144, 4033930, 8067860, 16135720]

約数ペア:

[(1, 16135720), (2, 8067860), (4, 4033930), (5, 3227144), (8, 2016965), (10, 1613572), (17, 949160), (20, 806786), (34, 474580), (40, 403393), (61, 264520), (68, 237290), (85, 189832), (122, 132260), (136, 118645), (170, 94916), (244, 66130), (305, 52904), (340, 47458), (389, 41480), (488, 33065), (610, 26452), (680, 23729), (778, 20740), (1037, 15560), (1220, 13226), (1556, 10370), (1945, 8296), (2074, 7780), (2440, 6613), (3112, 5185), (3890, 4148)]