40480180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155693}}^1$

素因数の和:155715

約数の個数: 24

約数和(自身を含む): 91548072

約数和(自身を除く): 51067892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 155693, 311386, 622772, 778465, 1556930, 2024009, 3113860, 4048018, 8096036, 10120045, 20240090, 40480180]

約数ペア:

[(1, 40480180), (2, 20240090), (4, 10120045), (5, 8096036), (10, 4048018), (13, 3113860), (20, 2024009), (26, 1556930), (52, 778465), (65, 622772), (130, 311386), (260, 155693)]