28115560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 71867880

約数和(自身を除く): 43752320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 121, 148, 157, 185, 220, 242, 296, 314, 370, 407, 440, 484, 605, 628, 740, 785, 814, 968, 1210, 1256, 1480, 1570, 1628, 1727, 2035, 2420, 3140, 3256, 3454, 4070, 4477, 4840, 5809, 6280, 6908, 8140, 8635, 8954, 11618, 13816, 16280, 17270, 17908, 18997, 22385, 23236, 29045, 34540, 35816, 37994, 44770, 46472, 58090, 63899, 69080, 75988, 89540, 94985, 116180, 127798, 151976, 179080, 189970, 232360, 255596, 319495, 379940, 511192, 638990, 702889, 759880, 1277980, 1405778, 2555960, 2811556, 3514445, 5623112, 7028890, 14057780, 28115560]

約数ペア:

[(1, 28115560), (2, 14057780), (4, 7028890), (5, 5623112), (8, 3514445), (10, 2811556), (11, 2555960), (20, 1405778), (22, 1277980), (37, 759880), (40, 702889), (44, 638990), (55, 511192), (74, 379940), (88, 319495), (110, 255596), (121, 232360), (148, 189970), (157, 179080), (185, 151976), (220, 127798), (242, 116180), (296, 94985), (314, 89540), (370, 75988), (407, 69080), (440, 63899), (484, 58090), (605, 46472), (628, 44770), (740, 37994), (785, 35816), (814, 34540), (968, 29045), (1210, 23236), (1256, 22385), (1480, 18997), (1570, 17908), (1628, 17270), (1727, 16280), (2035, 13816), (2420, 11618), (3140, 8954), (3256, 8635), (3454, 8140), (4070, 6908), (4477, 6280), (4840, 5809)]