18031120

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{877}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 42133464

約数和(自身を除く): 24102344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 877, 1028, 1285, 1754, 2056, 2570, 3508, 4112, 4385, 5140, 7016, 8770, 10280, 14032, 17540, 20560, 35080, 70160, 225389, 450778, 901556, 1126945, 1803112, 2253890, 3606224, 4507780, 9015560, 18031120]

約数ペア:

[(1, 18031120), (2, 9015560), (4, 4507780), (5, 3606224), (8, 2253890), (10, 1803112), (16, 1126945), (20, 901556), (40, 450778), (80, 225389), (257, 70160), (514, 35080), (877, 20560), (1028, 17540), (1285, 14032), (1754, 10280), (2056, 8770), (2570, 7016), (3508, 5140), (4112, 4385)]