257075840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{57383}}^1$

素因数の和:57409

約数の個数: 64

約数和(自身を含む): 702380160

約数和(自身を除く): 445304320

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 57383, 114766, 229532, 286915, 401681, 459064, 573830, 803362, 918128, 1147660, 1606724, 1836256, 2008405, 2295320, 3213448, 3672512, 4016810, 4590640, 6426896, 7345024, 8033620, 9181280, 12853792, 16067240, 18362560, 25707584, 32134480, 36725120, 51415168, 64268960, 128537920, 257075840]

約数ペア:

[(1, 257075840), (2, 128537920), (4, 64268960), (5, 51415168), (7, 36725120), (8, 32134480), (10, 25707584), (14, 18362560), (16, 16067240), (20, 12853792), (28, 9181280), (32, 8033620), (35, 7345024), (40, 6426896), (56, 4590640), (64, 4016810), (70, 3672512), (80, 3213448), (112, 2295320), (128, 2008405), (140, 1836256), (160, 1606724), (224, 1147660), (280, 918128), (320, 803362), (448, 573830), (560, 459064), (640, 401681), (896, 286915), (1120, 229532), (2240, 114766), (4480, 57383)]