1040302640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1000291}}^1$

素因数の和:1000317

約数の個数: 40

約数和(自身を含む): 2604760368

約数和(自身を除く): 1564457728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1000291, 2000582, 4001164, 5001455, 8002328, 10002910, 13003783, 16004656, 20005820, 26007566, 40011640, 52015132, 65018915, 80023280, 104030264, 130037830, 208060528, 260075660, 520151320, 1040302640]

約数ペア:

[(1, 1040302640), (2, 520151320), (4, 260075660), (5, 208060528), (8, 130037830), (10, 104030264), (13, 80023280), (16, 65018915), (20, 52015132), (26, 40011640), (40, 26007566), (52, 20005820), (65, 16004656), (80, 13003783), (104, 10002910), (130, 8002328), (208, 5001455), (260, 4001164), (520, 2000582), (1040, 1000291)]