31327780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{907}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 72305856

約数和(自身を除く): 40978076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 628, 785, 907, 1570, 1727, 1814, 3140, 3454, 3628, 4535, 6908, 8635, 9070, 9977, 17270, 18140, 19954, 34540, 39908, 49885, 99770, 142399, 199540, 284798, 569596, 711995, 1423990, 1566389, 2847980, 3132778, 6265556, 7831945, 15663890, 31327780]

約数ペア:

[(1, 31327780), (2, 15663890), (4, 7831945), (5, 6265556), (10, 3132778), (11, 2847980), (20, 1566389), (22, 1423990), (44, 711995), (55, 569596), (110, 284798), (157, 199540), (220, 142399), (314, 99770), (628, 49885), (785, 39908), (907, 34540), (1570, 19954), (1727, 18140), (1814, 17270), (3140, 9977), (3454, 9070), (3628, 8635), (4535, 6908)]