19291480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1613}}^1$

素因数の和:1660

約数の個数: 64

約数和(自身を含む): 48807360

約数和(自身を除く): 29515880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1613, 2392, 2990, 3226, 5980, 6452, 8065, 11960, 12904, 16130, 20969, 32260, 37099, 41938, 64520, 74198, 83876, 104845, 148396, 167752, 185495, 209690, 296792, 370990, 419380, 482287, 741980, 838760, 964574, 1483960, 1929148, 2411435, 3858296, 4822870, 9645740, 19291480]

約数ペア:

[(1, 19291480), (2, 9645740), (4, 4822870), (5, 3858296), (8, 2411435), (10, 1929148), (13, 1483960), (20, 964574), (23, 838760), (26, 741980), (40, 482287), (46, 419380), (52, 370990), (65, 296792), (92, 209690), (104, 185495), (115, 167752), (130, 148396), (184, 104845), (230, 83876), (260, 74198), (299, 64520), (460, 41938), (520, 37099), (598, 32260), (920, 20969), (1196, 16130), (1495, 12904), (1613, 11960), (2392, 8065), (2990, 6452), (3226, 5980)]