678133780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{12907}}^1$

素因数の和:13024

約数の個数: 48

約数和(自身を含む): 1483284096

約数和(自身を除く): 805150316

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 710, 740, 1420, 2627, 5254, 10508, 12907, 13135, 25814, 26270, 51628, 52540, 64535, 129070, 258140, 477559, 916397, 955118, 1832794, 1910236, 2387795, 3665588, 4581985, 4775590, 9163970, 9551180, 18327940, 33906689, 67813378, 135626756, 169533445, 339066890, 678133780]

約数ペア:

[(1, 678133780), (2, 339066890), (4, 169533445), (5, 135626756), (10, 67813378), (20, 33906689), (37, 18327940), (71, 9551180), (74, 9163970), (142, 4775590), (148, 4581985), (185, 3665588), (284, 2387795), (355, 1910236), (370, 1832794), (710, 955118), (740, 916397), (1420, 477559), (2627, 258140), (5254, 129070), (10508, 64535), (12907, 52540), (13135, 51628), (25814, 26270)]