66993920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{7477}}^1$

素因数の和:7505

約数の個数: 72

約数和(自身を含む): 183420384

約数和(自身を除く): 116426464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 7477, 8960, 14954, 29908, 37385, 52339, 59816, 74770, 104678, 119632, 149540, 209356, 239264, 261695, 299080, 418712, 478528, 523390, 598160, 837424, 957056, 1046780, 1196320, 1674848, 1914112, 2093560, 2392640, 3349696, 4187120, 4785280, 6699392, 8374240, 9570560, 13398784, 16748480, 33496960, 66993920]

約数ペア:

[(1, 66993920), (2, 33496960), (4, 16748480), (5, 13398784), (7, 9570560), (8, 8374240), (10, 6699392), (14, 4785280), (16, 4187120), (20, 3349696), (28, 2392640), (32, 2093560), (35, 1914112), (40, 1674848), (56, 1196320), (64, 1046780), (70, 957056), (80, 837424), (112, 598160), (128, 523390), (140, 478528), (160, 418712), (224, 299080), (256, 261695), (280, 239264), (320, 209356), (448, 149540), (560, 119632), (640, 104678), (896, 74770), (1120, 59816), (1280, 52339), (1792, 37385), (2240, 29908), (4480, 14954), (7477, 8960)]