640367860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{877}}^1\times {\mathrm{3319}}^1$

素因数の和:4216

約数の個数: 48

約数和(自身を含む): 1469139840

約数和(自身を除く): 828771980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 877, 1754, 3319, 3508, 4385, 6638, 8770, 9647, 13276, 16595, 17540, 19294, 33190, 36509, 38588, 48235, 66380, 73018, 96470, 146036, 182545, 192940, 365090, 730180, 2910763, 5821526, 11643052, 14553815, 29107630, 32018393, 58215260, 64036786, 128073572, 160091965, 320183930, 640367860]

約数ペア:

[(1, 640367860), (2, 320183930), (4, 160091965), (5, 128073572), (10, 64036786), (11, 58215260), (20, 32018393), (22, 29107630), (44, 14553815), (55, 11643052), (110, 5821526), (220, 2910763), (877, 730180), (1754, 365090), (3319, 192940), (3508, 182545), (4385, 146036), (6638, 96470), (8770, 73018), (9647, 66380), (13276, 48235), (16595, 38588), (17540, 36509), (19294, 33190)]