255304120

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 583783200

約数和(自身を除く): 328479080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 181, 197, 358, 362, 394, 716, 724, 788, 895, 905, 985, 1432, 1448, 1576, 1790, 1810, 1970, 3580, 3620, 3940, 7160, 7240, 7880, 32399, 35263, 35657, 64798, 70526, 71314, 129596, 141052, 142628, 161995, 176315, 178285, 259192, 282104, 285256, 323990, 352630, 356570, 647980, 705260, 713140, 1295960, 1410520, 1426280, 6382603, 12765206, 25530412, 31913015, 51060824, 63826030, 127652060, 255304120]

約数ペア:

[(1, 255304120), (2, 127652060), (4, 63826030), (5, 51060824), (8, 31913015), (10, 25530412), (20, 12765206), (40, 6382603), (179, 1426280), (181, 1410520), (197, 1295960), (358, 713140), (362, 705260), (394, 647980), (716, 356570), (724, 352630), (788, 323990), (895, 285256), (905, 282104), (985, 259192), (1432, 178285), (1448, 176315), (1576, 161995), (1790, 142628), (1810, 141052), (1970, 129596), (3580, 71314), (3620, 70526), (3940, 64798), (7160, 35657), (7240, 35263), (7880, 32399)]