18930560

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2689}}^1$

素因数の和:2719

約数の個数: 64

約数和(自身を含む): 49388400

約数和(自身を除く): 30457840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 2689, 3520, 5378, 7040, 10756, 13445, 21512, 26890, 29579, 43024, 53780, 59158, 86048, 107560, 118316, 147895, 172096, 215120, 236632, 295790, 344192, 430240, 473264, 591580, 860480, 946528, 1183160, 1720960, 1893056, 2366320, 3786112, 4732640, 9465280, 18930560]

約数ペア:

[(1, 18930560), (2, 9465280), (4, 4732640), (5, 3786112), (8, 2366320), (10, 1893056), (11, 1720960), (16, 1183160), (20, 946528), (22, 860480), (32, 591580), (40, 473264), (44, 430240), (55, 344192), (64, 295790), (80, 236632), (88, 215120), (110, 172096), (128, 147895), (160, 118316), (176, 107560), (220, 86048), (320, 59158), (352, 53780), (440, 43024), (640, 29579), (704, 26890), (880, 21512), (1408, 13445), (1760, 10756), (2689, 7040), (3520, 5378)]