1221329560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1\times {\mathrm{3527}}^1$

素因数の和:4336

約数の個数: 64

約数和(自身を含む): 3002469120

約数和(自身を除く): 1781139560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 787, 1574, 3148, 3527, 3935, 6296, 7054, 7870, 8657, 14108, 15740, 17314, 17635, 28216, 31480, 34628, 35270, 38797, 43285, 69256, 70540, 77594, 86570, 141080, 155188, 173140, 193985, 310376, 346280, 387970, 775940, 1551880, 2775749, 5551498, 11102996, 13878745, 22205992, 27757490, 30533239, 55514980, 61066478, 111029960, 122132956, 152666195, 244265912, 305332390, 610664780, 1221329560]

約数ペア:

[(1, 1221329560), (2, 610664780), (4, 305332390), (5, 244265912), (8, 152666195), (10, 122132956), (11, 111029960), (20, 61066478), (22, 55514980), (40, 30533239), (44, 27757490), (55, 22205992), (88, 13878745), (110, 11102996), (220, 5551498), (440, 2775749), (787, 1551880), (1574, 775940), (3148, 387970), (3527, 346280), (3935, 310376), (6296, 193985), (7054, 173140), (7870, 155188), (8657, 141080), (14108, 86570), (15740, 77594), (17314, 70540), (17635, 69256), (28216, 43285), (31480, 38797), (34628, 35270)]