128433920

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5281}}^1$

素因数の和:5321

約数の個数: 72

約数和(自身を含む): 323892240

約数和(自身を除く): 195458320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 5281, 6080, 10562, 12160, 21124, 24320, 26405, 42248, 52810, 84496, 100339, 105620, 168992, 200678, 211240, 337984, 401356, 422480, 501695, 675968, 802712, 844960, 1003390, 1351936, 1605424, 1689920, 2006780, 3210848, 3379840, 4013560, 6421696, 6759680, 8027120, 12843392, 16054240, 25686784, 32108480, 64216960, 128433920]

約数ペア:

[(1, 128433920), (2, 64216960), (4, 32108480), (5, 25686784), (8, 16054240), (10, 12843392), (16, 8027120), (19, 6759680), (20, 6421696), (32, 4013560), (38, 3379840), (40, 3210848), (64, 2006780), (76, 1689920), (80, 1605424), (95, 1351936), (128, 1003390), (152, 844960), (160, 802712), (190, 675968), (256, 501695), (304, 422480), (320, 401356), (380, 337984), (608, 211240), (640, 200678), (760, 168992), (1216, 105620), (1280, 100339), (1520, 84496), (2432, 52810), (3040, 42248), (4864, 26405), (5281, 24320), (6080, 21124), (10562, 12160)]