90721040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{30649}}^1$

素因数の和:30699

約数の個数: 40

約数和(自身を含む): 216634200

約数和(自身を除く): 125913160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 30649, 61298, 122596, 153245, 245192, 306490, 490384, 612980, 1134013, 1225960, 2268026, 2451920, 4536052, 5670065, 9072104, 11340130, 18144208, 22680260, 45360520, 90721040]

約数ペア:

[(1, 90721040), (2, 45360520), (4, 22680260), (5, 18144208), (8, 11340130), (10, 9072104), (16, 5670065), (20, 4536052), (37, 2451920), (40, 2268026), (74, 1225960), (80, 1134013), (148, 612980), (185, 490384), (296, 306490), (370, 245192), (592, 153245), (740, 122596), (1480, 61298), (2960, 30649)]