16497639280

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{420001}}^1$

素因数の和:420505

約数の個数: 40

約数和(自身を含む): 38435223024

約数和(自身を除く): 21937583744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 420001, 840002, 1680004, 2100005, 3360008, 4200010, 6720016, 8400020, 16800040, 33600080, 206220491, 412440982, 824881964, 1031102455, 1649763928, 2062204910, 3299527856, 4124409820, 8248819640, 16497639280]

約数ペア:

[(1, 16497639280), (2, 8248819640), (4, 4124409820), (5, 3299527856), (8, 2062204910), (10, 1649763928), (16, 1031102455), (20, 824881964), (40, 412440982), (80, 206220491), (491, 33600080), (982, 16800040), (1964, 8400020), (2455, 6720016), (3928, 4200010), (4910, 3360008), (7856, 2100005), (9820, 1680004), (19640, 840002), (39280, 420001)]