28027280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18439}}^1$

素因数の和:18471

約数の個数: 40

約数和(自身を含む): 68596800

約数和(自身を除く): 40569520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18439, 36878, 73756, 92195, 147512, 184390, 295024, 350341, 368780, 700682, 737560, 1401364, 1475120, 1751705, 2802728, 3503410, 5605456, 7006820, 14013640, 28027280]

約数ペア:

[(1, 28027280), (2, 14013640), (4, 7006820), (5, 5605456), (8, 3503410), (10, 2802728), (16, 1751705), (19, 1475120), (20, 1401364), (38, 737560), (40, 700682), (76, 368780), (80, 350341), (95, 295024), (152, 184390), (190, 147512), (304, 92195), (380, 73756), (760, 36878), (1520, 18439)]