19657180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{283}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 43513344

約数和(自身を除く): 23856164

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 151, 230, 283, 302, 460, 566, 604, 755, 1132, 1415, 1510, 2830, 3020, 3473, 5660, 6509, 6946, 13018, 13892, 17365, 26036, 32545, 34730, 42733, 65090, 69460, 85466, 130180, 170932, 213665, 427330, 854660, 982859, 1965718, 3931436, 4914295, 9828590, 19657180]

約数ペア:

[(1, 19657180), (2, 9828590), (4, 4914295), (5, 3931436), (10, 1965718), (20, 982859), (23, 854660), (46, 427330), (92, 213665), (115, 170932), (151, 130180), (230, 85466), (283, 69460), (302, 65090), (460, 42733), (566, 34730), (604, 32545), (755, 26036), (1132, 17365), (1415, 13892), (1510, 13018), (2830, 6946), (3020, 6509), (3473, 5660)]