840359890

素因数分解:

$2^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{223}}^1\times {\mathrm{1973}}^1$

素因数の和:2394

約数の個数: 32

約数和(自身を含む): 1528160256

約数和(自身を除く): 687800366

約数列:

[1, 2, 5, 10, 191, 223, 382, 446, 955, 1115, 1910, 1973, 2230, 3946, 9865, 19730, 42593, 85186, 212965, 376843, 425930, 439979, 753686, 879958, 1884215, 2199895, 3768430, 4399790, 84035989, 168071978, 420179945, 840359890]

約数ペア:

[(1, 840359890), (2, 420179945), (5, 168071978), (10, 84035989), (191, 4399790), (223, 3768430), (382, 2199895), (446, 1884215), (955, 879958), (1115, 753686), (1910, 439979), (1973, 425930), (2230, 376843), (3946, 212965), (9865, 85186), (19730, 42593)]