28756640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16339}}^1$

素因数の和:16365

約数の個数: 48

約数和(自身を含む): 74118240

約数和(自身を除く): 45361600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 16339, 32678, 65356, 81695, 130712, 163390, 179729, 261424, 326780, 359458, 522848, 653560, 718916, 898645, 1307120, 1437832, 1797290, 2614240, 2875664, 3594580, 5751328, 7189160, 14378320, 28756640]

約数ペア:

[(1, 28756640), (2, 14378320), (4, 7189160), (5, 5751328), (8, 3594580), (10, 2875664), (11, 2614240), (16, 1797290), (20, 1437832), (22, 1307120), (32, 898645), (40, 718916), (44, 653560), (55, 522848), (80, 359458), (88, 326780), (110, 261424), (160, 179729), (176, 163390), (220, 130712), (352, 81695), (440, 65356), (880, 32678), (1760, 16339)]