638462720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{71257}}^1$

素因数の和:71285

約数の個数: 72

約数和(自身を含む): 1747816224

約数和(自身を除く): 1109353504

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, 8960, 71257, 142514, 285028, 356285, 498799, 570056, 712570, 997598, 1140112, 1425140, 1995196, 2280224, 2493995, 2850280, 3990392, 4560448, 4987990, 5700560, 7980784, 9120896, 9975980, 11401120, 15961568, 18241792, 19951960, 22802240, 31923136, 39903920, 45604480, 63846272, 79807840, 91208960, 127692544, 159615680, 319231360, 638462720]

約数ペア:

[(1, 638462720), (2, 319231360), (4, 159615680), (5, 127692544), (7, 91208960), (8, 79807840), (10, 63846272), (14, 45604480), (16, 39903920), (20, 31923136), (28, 22802240), (32, 19951960), (35, 18241792), (40, 15961568), (56, 11401120), (64, 9975980), (70, 9120896), (80, 7980784), (112, 5700560), (128, 4987990), (140, 4560448), (160, 3990392), (224, 2850280), (256, 2493995), (280, 2280224), (320, 1995196), (448, 1425140), (560, 1140112), (640, 997598), (896, 712570), (1120, 570056), (1280, 498799), (1792, 356285), (2240, 285028), (4480, 142514), (8960, 71257)]